3161113531 has 4 divisors (see below), whose sum is σ = 3175289152. Its totient is φ = 3146937912.

The previous prime is 3161113507. The next prime is 3161113597. The reversal of 3161113531 is 1353111613.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3161113531 - 2⁵ = 3161113499 is a prime.

It is a super-2 number, since 2×3161113531² = 19985277511742575922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3161113496 and 3161113505.

It is not an unprimeable number, because it can be changed into a prime (3161113231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7087476 + ... + 7087921.

It is an arithmetic number, because the mean of its divisors is an integer number (793822288).

Almost surely, 2^3161113531 is an apocalyptic number.

3161113531 is a deficient number, since it is larger than the sum of its proper divisors (14175621).

3161113531 is a wasteful number, since it uses less digits than its factorization.

3161113531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14175620.

The product of its digits is 810, while the sum is 25.

The square root of 3161113531 is about 56223.7808316019. The cubic root of 3161113531 is about 1467.6191318842.

The spelling of 3161113531 in words is "three billion, one hundred sixty-one million, one hundred thirteen thousand, five hundred thirty-one".