3113881157 has 2 divisors, whose sum is σ = 3113881158. Its totient is φ = 3113881156.

The previous prime is 3113881117. The next prime is 3113881159. The reversal of 3113881157 is 7511883113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3088469476 + 25411681 = 55574^2 + 5041^2 .

It is a cyclic number.

It is not a de Polignac number, because 3113881157 - 2⁶ = 3113881093 is a prime.

Together with 3113881159, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3113881157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3113881159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556940578 + 1556940579.

It is an arithmetic number, because the mean of its divisors is an integer number (1556940579).

Almost surely, 2^3113881157 is an apocalyptic number.

It is an amenable number.

3113881157 is a deficient number, since it is larger than the sum of its proper divisors (1).

3113881157 is an equidigital number, since it uses as much as digits as its factorization.

3113881157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 38.

The square root of 3113881157 is about 55802.1608631780. The cubic root of 3113881157 is about 1460.2728515196.

The spelling of 3113881157 in words is "three billion, one hundred thirteen million, eight hundred eighty-one thousand, one hundred fifty-seven".