12311022102 has 16 divisors (see below), whose sum is σ = 24626419632. Its totient is φ = 4102944800.

The previous prime is 12311022049. The next prime is 12311022103. The reversal of 12311022102 is 20122011321.

It is a super-2 number, since 2×12311022102² (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 (12311022103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145149 + ... + 213752.

It is an arithmetic number, because the mean of its divisors is an integer number (1539151227).

Almost surely, 2^12311022102 is an apocalyptic number.

12311022102 is an abundant number, since it is smaller than the sum of its proper divisors (12315397530).

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

12311022102 is a wasteful number, since it uses less digits than its factorization.

12311022102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364623.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12311022102 its reverse (20122011321), we get a palindrome (32433033423).

The spelling of 12311022102 in words is "twelve billion, three hundred eleven million, twenty-two thousand, one hundred two".