3125813311 has 2 divisors, whose sum is σ = 3125813312. Its totient is φ = 3125813310.

The previous prime is 3125813293. The next prime is 3125813351. The reversal of 3125813311 is 1133185213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3125813311 - 2⁵ = 3125813279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3125813311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3125813351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562906655 + 1562906656.

It is an arithmetic number, because the mean of its divisors is an integer number (1562906656).

Almost surely, 2^3125813311 is an apocalyptic number.

3125813311 is a deficient number, since it is larger than the sum of its proper divisors (1).

3125813311 is an equidigital number, since it uses as much as digits as its factorization.

3125813311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 28.

The square root of 3125813311 is about 55908.9734389749. The cubic root of 3125813311 is about 1462.1356920136.

Adding to 3125813311 its reverse (1133185213), we get a palindrome (4258998524).

The spelling of 3125813311 in words is "three billion, one hundred twenty-five million, eight hundred thirteen thousand, three hundred eleven".