31044244313 has 2 divisors, whose sum is σ = 31044244314. Its totient is φ = 31044244312.

The previous prime is 31044244303. The next prime is 31044244369. The reversal of 31044244313 is 31344244013.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28700425744 + 2343818569 = 169412^2 + 48413^2 .

It is a cyclic number.

It is not a de Polignac number, because 31044244313 - 2¹⁶ = 31044178777 is a prime.

It is not a weakly prime, because it can be changed into another prime (31044244303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15522122156 + 15522122157.

It is an arithmetic number, because the mean of its divisors is an integer number (15522122157).

Almost surely, 2^31044244313 is an apocalyptic number.

It is an amenable number.

31044244313 is a deficient number, since it is larger than the sum of its proper divisors (1).

31044244313 is an equidigital number, since it uses as much as digits as its factorization.

31044244313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 31044244313 its reverse (31344244013), we get a palindrome (62388488326).

The spelling of 31044244313 in words is "thirty-one billion, forty-four million, two hundred forty-four thousand, three hundred thirteen".