31303200012311 has 2 divisors, whose sum is σ = 31303200012312. Its totient is φ = 31303200012310.

The previous prime is 31303200012283. The next prime is 31303200012341. The reversal of 31303200012311 is 11321000230313.

It is a weak prime.

It is an emirp because it is prime and its reverse (11321000230313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31303200012311 - 2⁶ = 31303200012247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31303200012341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15651600006155 + 15651600006156.

It is an arithmetic number, because the mean of its divisors is an integer number (15651600006156).

Almost surely, 2^{31303200012311} is an apocalyptic number.

31303200012311 is a deficient number, since it is larger than the sum of its proper divisors (1).

31303200012311 is an equidigital number, since it uses as much as digits as its factorization.

31303200012311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31303200012311 its reverse (11321000230313), we get a palindrome (42624200242624).

The spelling of 31303200012311 in words is "thirty-one trillion, three hundred three billion, two hundred million, twelve thousand, three hundred eleven".