12311013102 has 32 divisors (see below), whose sum is σ = 25949385600. Its totient is φ = 3882968928.

The previous prime is 12311013053. The next prime is 12311013109. The reversal of 12311013102 is 20131011321.

It is a happy number.

It is a super-2 number, since 2×12311013102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311013109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29373 + ... + 159639.

It is an arithmetic number, because the mean of its divisors is an integer number (810918300).

Almost surely, 2^12311013102 is an apocalyptic number.

12311013102 is an abundant number, since it is smaller than the sum of its proper divisors (13638372498).

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

12311013102 is a wasteful number, since it uses less digits than its factorization.

12311013102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131120.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12311013102 its reverse (20131011321), we get a palindrome (32442024423).

The spelling of 12311013102 in words is "twelve billion, three hundred eleven million, thirteen thousand, one hundred two".