311131301087 has 2 divisors, whose sum is σ = 311131301088. Its totient is φ = 311131301086.

The previous prime is 311131301081. The next prime is 311131301147. The reversal of 311131301087 is 780103131113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 311131301087 - 2¹⁰ = 311131300063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311131301081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155565650543 + 155565650544.

It is an arithmetic number, because the mean of its divisors is an integer number (155565650544).

Almost surely, 2^311131301087 is an apocalyptic number.

311131301087 is a deficient number, since it is larger than the sum of its proper divisors (1).

311131301087 is an equidigital number, since it uses as much as digits as its factorization.

311131301087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 29.

The spelling of 311131301087 in words is "three hundred eleven billion, one hundred thirty-one million, three hundred one thousand, eighty-seven".