12311113020 has 48 divisors (see below), whose sum is σ = 34487134080. Its totient is φ = 3281438016.

The previous prime is 12311113013. The next prime is 12311113033. The reversal of 12311113020 is 2031111321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85611 + ... + 178749.

It is an arithmetic number, because the mean of its divisors is an integer number (718481960).

Almost surely, 2^12311113020 is an apocalyptic number.

12311113020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12311113020 is an abundant number, since it is smaller than the sum of its proper divisors (22176021060).

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

12311113020 is a wasteful number, since it uses less digits than its factorization.

12311113020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95354 (or 95352 counting only the distinct ones).

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

Adding to 12311113020 its reverse (2031111321), we get a palindrome (14342224341).

The spelling of 12311113020 in words is "twelve billion, three hundred eleven million, one hundred thirteen thousand, twenty".