20123310120 has 32 divisors (see below), whose sum is σ = 60369930720. Its totient is φ = 5366216000.

The previous prime is 20123310107. The next prime is 20123310131. The reversal of 20123310120 is 2101332102.

It is a super-2 number, since 2×20123310120² (a number of 21 digits) contains 22 as substring.

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 20123310120.

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, 83847006 + ... + 83847245.

It is an arithmetic number, because the mean of its divisors is an integer number (1886560335).

Almost surely, 2^20123310120 is an apocalyptic number.

20123310120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123310120 is an abundant number, since it is smaller than the sum of its proper divisors (40246620600).

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

20123310120 is a wasteful number, since it uses less digits than its factorization.

20123310120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167694265 (or 167694261 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20123310120 its reverse (2101332102), we get a palindrome (22224642222).

The spelling of 20123310120 in words is "twenty billion, one hundred twenty-three million, three hundred ten thousand, one hundred twenty".