10231512015 has 32 divisors (see below), whose sum is σ = 16812334080. Its totient is φ = 5310802304.

The previous prime is 10231511959. The next prime is 10231512019. The reversal of 10231512015 is 51021513201.

It is a cyclic number.

It is not a de Polignac number, because 10231512015 - 2¹³ = 10231503823 is a prime.

It is a super-2 number, since 2×10231512015² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10231511982 and 10231512000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231512019) 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, 85657 + ... + 166733.

It is an arithmetic number, because the mean of its divisors is an integer number (525385440).

Almost surely, 2^10231512015 is an apocalyptic number.

10231512015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10231512015 is a deficient number, since it is larger than the sum of its proper divisors (6580822065).

10231512015 is a wasteful number, since it uses less digits than its factorization.

10231512015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81311.

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

The spelling of 10231512015 in words is "ten billion, two hundred thirty-one million, five hundred twelve thousand, fifteen".