3111321263 has 2 divisors, whose sum is σ = 3111321264. Its totient is φ = 3111321262.

The previous prime is 3111321253. The next prime is 3111321319. The reversal of 3111321263 is 3621231113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3111321263 - 2²⁸ = 2842885807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3111321223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555660631 + 1555660632.

It is an arithmetic number, because the mean of its divisors is an integer number (1555660632).

Almost surely, 2^3111321263 is an apocalyptic number.

3111321263 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111321263 is an equidigital number, since it uses as much as digits as its factorization.

3111321263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

The square root of 3111321263 is about 55779.2189170842. The cubic root of 3111321263 is about 1459.8725827066.

Adding to 3111321263 its reverse (3621231113), we get a palindrome (6732552376).

The spelling of 3111321263 in words is "three billion, one hundred eleven million, three hundred twenty-one thousand, two hundred sixty-three".