311323430087 has 2 divisors, whose sum is σ = 311323430088. Its totient is φ = 311323430086.

The previous prime is 311323430029. The next prime is 311323430101. The reversal of 311323430087 is 780034323113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311323430087 - 2¹⁸ = 311323167943 is a prime.

It is a super-2 number, since 2×311323430087² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311323490087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155661715043 + 155661715044.

It is an arithmetic number, because the mean of its divisors is an integer number (155661715044).

Almost surely, 2^311323430087 is an apocalyptic number.

311323430087 is a deficient number, since it is larger than the sum of its proper divisors (1).

311323430087 is an equidigital number, since it uses as much as digits as its factorization.

311323430087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 311323430087 in words is "three hundred eleven billion, three hundred twenty-three million, four hundred thirty thousand, eighty-seven".