10561027731 has 16 divisors (see below), whose sum is σ = 14315029248. Its totient is φ = 6924780000.

The previous prime is 10561027723. The next prime is 10561027739. The reversal of 10561027731 is 13772016501.

It is an interprime number because it is at equal distance from previous prime (10561027723) and next prime (10561027739).

It is not a de Polignac number, because 10561027731 - 2³ = 10561027723 is a prime.

It is a super-2 number, since 2×10561027731² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10561027692 and 10561027701.

It is not an unprimeable number, because it can be changed into a prime (10561027739) 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, 69661 + ... + 161166.

It is an arithmetic number, because the mean of its divisors is an integer number (894689328).

Almost surely, 2^10561027731 is an apocalyptic number.

10561027731 is a deficient number, since it is larger than the sum of its proper divisors (3754001517).

10561027731 is a wasteful number, since it uses less digits than its factorization.

10561027731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231082.

The product of its (nonzero) digits is 8820, while the sum is 33.

The spelling of 10561027731 in words is "ten billion, five hundred sixty-one million, twenty-seven thousand, seven hundred thirty-one".