123311010120 has 64 divisors (see below), whose sum is σ = 381866365440. Its totient is φ = 31822195200.

The previous prime is 123311010107. The next prime is 123311010157. The reversal of 123311010120 is 21010113321.

It is a happy number.

123311010120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 123311010120.

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, 16570341 + ... + 16577780.

It is an arithmetic number, because the mean of its divisors is an integer number (5966661960).

Almost surely, 2^123311010120 is an apocalyptic number.

123311010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123311010120 is an abundant number, since it is smaller than the sum of its proper divisors (258555355320).

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

123311010120 is a wasteful number, since it uses less digits than its factorization.

123311010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33148166 (or 33148162 counting only the distinct ones).

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

Adding to 123311010120 its reverse (21010113321), we get a palindrome (144321123441).

The spelling of 123311010120 in words is "one hundred twenty-three billion, three hundred eleven million, ten thousand, one hundred twenty".