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12011211030 = 2357134399711
BaseRepresentation
bin10110010111110110…
…01000100100010110
31011000002012201222210
423023323020210112
5144044332223110
65303505534250
7603435415650
oct131373104426
934002181883
1012011211030
115104019695
1223b2644386
13119558b680
1481d2d96d0
154a4737520
hex2cbec8916

12011211030 has 64 divisors (see below), whose sum is σ = 35479277568. Its totient is φ = 2534232960.

The previous prime is 12011211029. The next prime is 12011211049. The reversal of 12011211030 is 3011211021.

12011211030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12011210997 and 12011211015.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2197126 + ... + 2202585.

It is an arithmetic number, because the mean of its divisors is an integer number (554363712).

Almost surely, 212011211030 is an apocalyptic number.

12011211030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12011211030 is an abundant number, since it is smaller than the sum of its proper divisors (23468066538).

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

12011211030 is a wasteful number, since it uses less digits than its factorization.

12011211030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4399741.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 12011211030 its reverse (3011211021), we get a palindrome (15022422051).

Subtracting from 12011211030 its reverse (3011211021), we obtain a palindrome (9000000009).

The spelling of 12011211030 in words is "twelve billion, eleven million, two hundred eleven thousand, thirty".

Divisors: 1 2 3 5 6 7 10 13 14 15 21 26 30 35 39 42 65 70 78 91 105 130 182 195 210 273 390 455 546 910 1365 2730 4399711 8799422 13199133 21998555 26398266 30797977 43997110 57196243 61595954 65995665 92393931 114392486 131991330 153989885 171588729 184787862 285981215 307979770 343177458 400373701 461969655 571962430 800747402 857943645 923939310 1201121103 1715887290 2001868505 2402242206 4003737010 6005605515 12011211030