2123951912120 has 16 divisors (see below), whose sum is σ = 4778891802360. Its totient is φ = 849580764832.

The previous prime is 2123951912113. The next prime is 2123951912233. The reversal of 2123951912120 is 212191593212.

It is a super-2 number, since 2×2123951912120² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26549398862 + ... + 26549398941.

Almost surely, 2^{2123951912120} is an apocalyptic number.

2123951912120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123951912120 is an abundant number, since it is smaller than the sum of its proper divisors (2654939890240).

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

2123951912120 is a wasteful number, since it uses less digits than its factorization.

2123951912120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53098797814 (or 53098797810 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 38.

The spelling of 2123951912120 in words is "two trillion, one hundred twenty-three billion, nine hundred fifty-one million, nine hundred twelve thousand, one hundred twenty".