3111401231 has 2 divisors, whose sum is σ = 3111401232. Its totient is φ = 3111401230.

The previous prime is 3111401219. The next prime is 3111401233. The reversal of 3111401231 is 1321041113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3111401231 - 2¹⁴ = 3111384847 is a prime.

It is a super-2 number, since 2×3111401231² = 19361635240536630722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 3111401233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3111401233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555700615 + 1555700616.

It is an arithmetic number, because the mean of its divisors is an integer number (1555700616).

Almost surely, 2^3111401231 is an apocalyptic number.

3111401231 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111401231 is an equidigital number, since it uses as much as digits as its factorization.

3111401231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 3111401231 is about 55779.9357385790. The cubic root of 3111401231 is about 1459.8850899429.

Adding to 3111401231 its reverse (1321041113), we get a palindrome (4432442344).

The spelling of 3111401231 in words is "three billion, one hundred eleven million, four hundred one thousand, two hundred thirty-one".