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11230023012 = 22313191376897
BaseRepresentation
bin10100111010101110…
…01000110101100100
31001222122021021111020
422131113020311210
5140444341214022
65054202211140
7545201422605
oct123527106544
931878237436
1011230023012
11484306755a
122214ab3ab0
13109c794240
14787669dac
1545ad7935c
hex29d5c8d64

11230023012 has 48 divisors (see below), whose sum is σ = 28366851072. Its totient is φ = 3437291520.

The previous prime is 11230023011. The next prime is 11230023029. The reversal of 11230023012 is 21032003211.

11230023012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×112300230122 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11230022982 and 11230023000.

It is not an unprimeable number, because it can be changed into a prime (11230023011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158653 + ... + 218244.

It is an arithmetic number, because the mean of its divisors is an integer number (590976064).

Almost surely, 211230023012 is an apocalyptic number.

11230023012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11230023012 is an abundant number, since it is smaller than the sum of its proper divisors (17136828060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11230023012 is a wasteful number, since it uses less digits than its factorization.

11230023012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377108 (or 377106 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 11230023012 its reverse (21032003211), we get a palindrome (32262026223).

The spelling of 11230023012 in words is "eleven billion, two hundred thirty million, twenty-three thousand, twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 191 382 573 764 1146 2292 2483 4966 7449 9932 14898 29796 376897 753794 1130691 1507588 2261382 4522764 4899661 9799322 14698983 19598644 29397966 58795932 71987327 143974654 215961981 287949308 431923962 863847924 935835251 1871670502 2807505753 3743341004 5615011506 11230023012