10120512531 has 8 divisors (see below), whose sum is σ = 13503271360. Its totient is φ = 6742381032.

The previous prime is 10120512499. The next prime is 10120512587. The reversal of 10120512531 is 13521502101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10120512531 - 2⁵ = 10120512499 is a prime.

It is a super-2 number, since 2×10120512531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10120512498 and 10120512507.

It is not an unprimeable number, because it can be changed into a prime (10120512331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1151725 + ... + 1160478.

It is an arithmetic number, because the mean of its divisors is an integer number (1687908920).

Almost surely, 2^10120512531 is an apocalyptic number.

10120512531 is a deficient number, since it is larger than the sum of its proper divisors (3382758829).

10120512531 is a wasteful number, since it uses less digits than its factorization.

10120512531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313665.

The product of its (nonzero) digits is 300, while the sum is 21.

The spelling of 10120512531 in words is "ten billion, one hundred twenty million, five hundred twelve thousand, five hundred thirty-one".