10561537323 has 8 divisors (see below), whose sum is σ = 15646722000. Its totient is φ = 7041024864.

The previous prime is 10561537319. The next prime is 10561537331. The reversal of 10561537323 is 32373516501.

10561537323 is a `hidden beast` number, since 1 + 0 + 5 + 615 + 3 + 7 + 32 + 3 = 666.

It is not a de Polignac number, because 10561537323 - 2² = 10561537319 is a prime.

It is a super-2 number, since 2×10561537323² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10561537123) 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, 195583998 + ... + 195584051.

It is an arithmetic number, because the mean of its divisors is an integer number (1955840250).

Almost surely, 2^10561537323 is an apocalyptic number.

10561537323 is a deficient number, since it is larger than the sum of its proper divisors (5085184677).

10561537323 is an equidigital number, since it uses as much as digits as its factorization.

10561537323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391168058 (or 391168052 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The spelling of 10561537323 in words is "ten billion, five hundred sixty-one million, five hundred thirty-seven thousand, three hundred twenty-three".