10316311561 has 4 divisors (see below), whose sum is σ = 10317453952. Its totient is φ = 10315169172.

The previous prime is 10316311553. The next prime is 10316311583. The reversal of 10316311561 is 16511361301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10316311561 - 2³ = 10316311553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10316311861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557541 + ... + 575746.

It is an arithmetic number, because the mean of its divisors is an integer number (2579363488).

Almost surely, 2^10316311561 is an apocalyptic number.

It is an amenable number.

10316311561 is a deficient number, since it is larger than the sum of its proper divisors (1142391).

10316311561 is an equidigital number, since it uses as much as digits as its factorization.

10316311561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142390.

The product of its (nonzero) digits is 1620, while the sum is 28.

Adding to 10316311561 its reverse (16511361301), we get a palindrome (26827672862).

The spelling of 10316311561 in words is "ten billion, three hundred sixteen million, three hundred eleven thousand, five hundred sixty-one".