311430004091 has 2 divisors, whose sum is σ = 311430004092. Its totient is φ = 311430004090.

The previous prime is 311430004079. The next prime is 311430004117. The reversal of 311430004091 is 190400034113.

It is an a-pointer prime, because the next prime (311430004117) can be obtained adding 311430004091 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 311430004091 - 2⁶ = 311430004027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 311430004091.

It is not a weakly prime, because it can be changed into another prime (311430004001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155715002045 + 155715002046.

It is an arithmetic number, because the mean of its divisors is an integer number (155715002046).

Almost surely, 2^311430004091 is an apocalyptic number.

311430004091 is a deficient number, since it is larger than the sum of its proper divisors (1).

311430004091 is an equidigital number, since it uses as much as digits as its factorization.

311430004091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 311430004091 in words is "three hundred eleven billion, four hundred thirty million, four thousand, ninety-one".