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10311201020 = 225515560051
BaseRepresentation
bin10011001101001100…
…00111000011111100
3222121121100021200002
421212212013003330
5132104131413040
64423100453432
7513343522361
oct114646070374
928547307602
1010311201020
114411449a3a
121bb924a278
13c8430a6a3
146db610468
15405380a15
hex2669870fc

10311201020 has 12 divisors (see below), whose sum is σ = 21653522184. Its totient is φ = 4124480400.

The previous prime is 10311201007. The next prime is 10311201023. The reversal of 10311201020 is 2010211301.

10311201020 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 = 10311200992 and 10311201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10311201023) 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 3 ways as a sum of consecutive naturals, for example, 257780006 + ... + 257780045.

It is an arithmetic number, because the mean of its divisors is an integer number (1804460182).

Almost surely, 210311201020 is an apocalyptic number.

10311201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10311201020 is an abundant number, since it is smaller than the sum of its proper divisors (11342321164).

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

10311201020 is a wasteful number, since it uses less digits than its factorization.

10311201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515560060 (or 515560058 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 10311201020 its reverse (2010211301), we get a palindrome (12321412321).

The spelling of 10311201020 in words is "ten billion, three hundred eleven million, two hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 515560051 1031120102 2062240204 2577800255 5155600510 10311201020