10512131252721 has 16 divisors (see below), whose sum is σ = 16066879945728. Its totient is φ = 5988784309200.

The previous prime is 10512131252641. The next prime is 10512131252737. The reversal of 10512131252721 is 12725213121501.

It is a happy number.

It is not a de Polignac number, because 10512131252721 - 2¹⁰ = 10512131251697 is a prime.

It is a super-2 number, since 2×10512131252721² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10512131252771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 756152685 + ... + 756166586.

It is an arithmetic number, because the mean of its divisors is an integer number (1004179996608).

Almost surely, 2^{10512131252721} is an apocalyptic number.

It is an amenable number.

10512131252721 is a deficient number, since it is larger than the sum of its proper divisors (5554748693007).

10512131252721 is a wasteful number, since it uses less digits than its factorization.

10512131252721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512319612.

The product of its (nonzero) digits is 8400, while the sum is 33.

The spelling of 10512131252721 in words is "ten trillion, five hundred twelve billion, one hundred thirty-one million, two hundred fifty-two thousand, seven hundred twenty-one".