3113863861 has 2 divisors, whose sum is σ = 3113863862. Its totient is φ = 3113863860.

The previous prime is 3113863847. The next prime is 3113863979. The reversal of 3113863861 is 1683683113.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3046377636 + 67486225 = 55194^2 + 8215^2 .

It is a cyclic number.

It is not a de Polignac number, because 3113863861 - 2⁵ = 3113863829 is a prime.

It is a super-2 number, since 2×3113863861² = 19392296289683654642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3113863061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556931930 + 1556931931.

It is an arithmetic number, because the mean of its divisors is an integer number (1556931931).

Almost surely, 2^3113863861 is an apocalyptic number.

It is an amenable number.

3113863861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3113863861 is an equidigital number, since it uses as much as digits as its factorization.

3113863861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 3113863861 is about 55802.0058868855. The cubic root of 3113863861 is about 1460.2701478277.

The spelling of 3113863861 in words is "three billion, one hundred thirteen million, eight hundred sixty-three thousand, eight hundred sixty-one".