311011300231 has 2 divisors, whose sum is σ = 311011300232. Its totient is φ = 311011300230.

The previous prime is 311011300169. The next prime is 311011300241. The reversal of 311011300231 is 132003110113.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311011300231 is a prime.

It is a super-2 number, since 2×311011300231² (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 (311011300241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155505650115 + 155505650116.

It is an arithmetic number, because the mean of its divisors is an integer number (155505650116).

Almost surely, 2^311011300231 is an apocalyptic number.

311011300231 is a deficient number, since it is larger than the sum of its proper divisors (1).

311011300231 is an equidigital number, since it uses as much as digits as its factorization.

311011300231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 311011300231 its reverse (132003110113), we get a palindrome (443014410344).

The spelling of 311011300231 in words is "three hundred eleven billion, eleven million, three hundred thousand, two hundred thirty-one".