31344402344113 has 2 divisors, whose sum is σ = 31344402344114. Its totient is φ = 31344402344112.

The previous prime is 31344402344107. The next prime is 31344402344131. The reversal of 31344402344113 is 31144320444313.

Together with next prime (31344402344131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29306112174144 + 2038290169969 = 5413512^2 + 1427687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31344402344113 is a prime.

It is not a weakly prime, because it can be changed into another prime (31344402344813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15672201172056 + 15672201172057.

It is an arithmetic number, because the mean of its divisors is an integer number (15672201172057).

Almost surely, 2^{31344402344113} is an apocalyptic number.

It is an amenable number.

31344402344113 is a deficient number, since it is larger than the sum of its proper divisors (1).

31344402344113 is an equidigital number, since it uses as much as digits as its factorization.

31344402344113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 37.

Adding to 31344402344113 its reverse (31144320444313), we get a palindrome (62488722788426).

The spelling of 31344402344113 in words is "thirty-one trillion, three hundred forty-four billion, four hundred two million, three hundred forty-four thousand, one hundred thirteen".