122311113020 has 24 divisors (see below), whose sum is σ = 256896922464. Its totient is φ = 48916143296.

The previous prime is 122311113011. The next prime is 122311113031. The reversal of 122311113020 is 20311113221.

It is a self number, because there is not a number n which added to its sum of digits gives 122311113020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397367 + ... + 634446.

It is an arithmetic number, because the mean of its divisors is an integer number (10704038436).

Almost surely, 2^122311113020 is an apocalyptic number.

122311113020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122311113020 is an abundant number, since it is smaller than the sum of its proper divisors (134585809444).

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

122311113020 is a wasteful number, since it uses less digits than its factorization.

122311113020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037749 (or 1037747 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 122311113020 its reverse (20311113221), we get a palindrome (142622226241).

The spelling of 122311113020 in words is "one hundred twenty-two billion, three hundred eleven million, one hundred thirteen thousand, twenty".