311431340402363 has 2 divisors, whose sum is σ = 311431340402364. Its totient is φ = 311431340402362.

The previous prime is 311431340402267. The next prime is 311431340402381. The reversal of 311431340402363 is 363204043134113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311431340402363 - 2¹⁶ = 311431340336827 is a prime.

It is not a weakly prime, because it can be changed into another prime (311431340302363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155715670201181 + 155715670201182.

It is an arithmetic number, because the mean of its divisors is an integer number (155715670201182).

Almost surely, 2^{311431340402363} is an apocalyptic number.

311431340402363 is a deficient number, since it is larger than the sum of its proper divisors (1).

311431340402363 is an equidigital number, since it uses as much as digits as its factorization.

311431340402363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 38.

Adding to 311431340402363 its reverse (363204043134113), we get a palindrome (674635383536476).

The spelling of 311431340402363 in words is "three hundred eleven trillion, four hundred thirty-one billion, three hundred forty million, four hundred two thousand, three hundred sixty-three".