311371427 has 2 divisors, whose sum is σ = 311371428. Its totient is φ = 311371426.

The previous prime is 311371421. The next prime is 311371433. The reversal of 311371427 is 724173113.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (311371421) and next prime (311371433).

It is a cyclic number.

It is not a de Polignac number, because 311371427 - 2⁶ = 311371363 is a prime.

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 311371427.

It is not a weakly prime, because it can be changed into another prime (311371421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155685713 + 155685714.

It is an arithmetic number, because the mean of its divisors is an integer number (155685714).

Almost surely, 2^311371427 is an apocalyptic number.

311371427 is a deficient number, since it is larger than the sum of its proper divisors (1).

311371427 is an equidigital number, since it uses as much as digits as its factorization.

311371427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 29.

The square root of 311371427 is about 17645.7197926296. The cubic root of 311371427 is about 677.7865071815.

The spelling of 311371427 in words is "three hundred eleven million, three hundred seventy-one thousand, four hundred twenty-seven".