1131616056869 has 4 divisors (see below), whose sum is σ = 1131618313920. Its totient is φ = 1131613799820.

The previous prime is 1131616056859. The next prime is 1131616056899. The reversal of 1131616056869 is 9686506161311.

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 1131616056869 - 2¹² = 1131616052773 is a prime.

It is a super-2 number, since 2×1131616056869² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1131616056869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131616056859) 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, 887 + ... + 1504404.

It is an arithmetic number, because the mean of its divisors is an integer number (282904578480).

Almost surely, 2^{1131616056869} is an apocalyptic number.

It is an amenable number.

1131616056869 is a deficient number, since it is larger than the sum of its proper divisors (2257051).

1131616056869 is an equidigital number, since it uses as much as digits as its factorization.

1131616056869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257050.

The product of its (nonzero) digits is 1399680, while the sum is 53.

The spelling of 1131616056869 in words is "one trillion, one hundred thirty-one billion, six hundred sixteen million, fifty-six thousand, eight hundred sixty-nine".