3101894131 has 32 divisors (see below), whose sum is σ = 3725549568. Its totient is φ = 2526923520.

The previous prime is 3101894099. The next prime is 3101894141. The reversal of 3101894131 is 1314981013.

It is a cyclic number.

It is not a de Polignac number, because 3101894131 - 2⁵ = 3101894099 is a prime.

It is a super-2 number, since 2×3101894131² = 19243494399864490322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3101894093 and 3101894102.

It is not an unprimeable number, because it can be changed into a prime (3101894141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3061581 + ... + 3062593.

It is an arithmetic number, because the mean of its divisors is an integer number (116423424).

Almost surely, 2^3101894131 is an apocalyptic number.

3101894131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3101894131 is a deficient number, since it is larger than the sum of its proper divisors (623655437).

3101894131 is a wasteful number, since it uses less digits than its factorization.

3101894131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 3101894131 is about 55694.6508293211. The cubic root of 3101894131 is about 1458.3966465363.

The spelling of 3101894131 in words is "three billion, one hundred one million, eight hundred ninety-four thousand, one hundred thirty-one".