3111402857 has 2 divisors, whose sum is σ = 3111402858. Its totient is φ = 3111402856.

The previous prime is 3111402841. The next prime is 3111402919. The reversal of 3111402857 is 7582041113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2676096361 + 435306496 = 51731^2 + 20864^2 .

It is a cyclic number.

It is not a de Polignac number, because 3111402857 - 2⁴ = 3111402841 is a prime.

It is not a weakly prime, because it can be changed into another prime (3111402157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555701428 + 1555701429.

It is an arithmetic number, because the mean of its divisors is an integer number (1555701429).

Almost surely, 2^3111402857 is an apocalyptic number.

It is an amenable number.

3111402857 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111402857 is an equidigital number, since it uses as much as digits as its factorization.

3111402857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 3111402857 is about 55779.9503137104. The cubic root of 3111402857 is about 1459.8853442519.

The spelling of 3111402857 in words is "three billion, one hundred eleven million, four hundred two thousand, eight hundred fifty-seven".