2120123310120 has 128 divisors (see below), whose sum is σ = 7295048064000. Its totient is φ = 547128587520.

The previous prime is 2120123310083. The next prime is 2120123310127. The reversal of 2120123310120 is 210133210212.

2120123310120 is a `hidden beast` number, since 212 + 0 + 1 + 2 + 331 + 0 + 120 = 666.

It is a super-2 number, since 2×2120123310120² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2120123310093 and 2120123310102.

It is not an unprimeable number, because it can be changed into a prime (2120123310127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31629055 + ... + 31696014.

It is an arithmetic number, because the mean of its divisors is an integer number (56992563000).

Almost surely, 2^{2120123310120} is an apocalyptic number.

2120123310120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120123310120 is an abundant number, since it is smaller than the sum of its proper divisors (5174924753880).

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

2120123310120 is a wasteful number, since it uses less digits than its factorization.

2120123310120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63325120 (or 63325110 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2120123310120 its reverse (210133210212), we get a palindrome (2330256520332).

The spelling of 2120123310120 in words is "two trillion, one hundred twenty billion, one hundred twenty-three million, three hundred ten thousand, one hundred twenty".