311430230413 has 2 divisors, whose sum is σ = 311430230414. Its totient is φ = 311430230412.

The previous prime is 311430230333. The next prime is 311430230429. The reversal of 311430230413 is 314032034113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237610427209 + 73819803204 = 487453^2 + 271698^2 .

It is a cyclic number.

It is not a de Polignac number, because 311430230413 - 2¹⁷ = 311430099341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311430230443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155715115206 + 155715115207.

It is an arithmetic number, because the mean of its divisors is an integer number (155715115207).

Almost surely, 2^311430230413 is an apocalyptic number.

It is an amenable number.

311430230413 is a deficient number, since it is larger than the sum of its proper divisors (1).

311430230413 is an equidigital number, since it uses as much as digits as its factorization.

311430230413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 311430230413 its reverse (314032034113), we get a palindrome (625462264526).

The spelling of 311430230413 in words is "three hundred eleven billion, four hundred thirty million, two hundred thirty thousand, four hundred thirteen".