20115053031 has 8 divisors (see below), whose sum is σ = 27080460160. Its totient is φ = 13279840632.

The previous prime is 20115053017. The next prime is 20115053069. The reversal of 20115053031 is 13035051102.

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

It is not a de Polignac number, because 20115053031 - 2⁵ = 20115052999 is a prime.

It is a super-2 number, since 2×20115053031² (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 = 20115052989 and 20115053007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20115053831) 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, 32548321 + ... + 32548938.

It is an arithmetic number, because the mean of its divisors is an integer number (3385057520).

Almost surely, 2^20115053031 is an apocalyptic number.

20115053031 is a deficient number, since it is larger than the sum of its proper divisors (6965407129).

20115053031 is a wasteful number, since it uses less digits than its factorization.

20115053031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65097365.

The product of its (nonzero) digits is 450, while the sum is 21.

The spelling of 20115053031 in words is "twenty billion, one hundred fifteen million, fifty-three thousand, thirty-one".