2120929431 has 32 divisors (see below), whose sum is σ = 2902217472. Its totient is φ = 1377492480.

The previous prime is 2120929427. The next prime is 2120929453. The reversal of 2120929431 is 1349290212.

It is not a de Polignac number, because 2120929431 - 2² = 2120929427 is a prime.

It is a super-2 number, since 2×2120929431² = 8996683302563967522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2120929392 and 2120929401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120929411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7238521 + ... + 7238813.

It is an arithmetic number, because the mean of its divisors is an integer number (90694296).

Almost surely, 2^2120929431 is an apocalyptic number.

2120929431 is a deficient number, since it is larger than the sum of its proper divisors (781288041).

2120929431 is a wasteful number, since it uses less digits than its factorization.

2120929431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 2120929431 is about 46053.5496026094. The cubic root of 2120929431 is about 1284.8193624365.

The spelling of 2120929431 in words is "two billion, one hundred twenty million, nine hundred twenty-nine thousand, four hundred thirty-one".