31031350534313 has 2 divisors, whose sum is σ = 31031350534314. Its totient is φ = 31031350534312.

The previous prime is 31031350534243. The next prime is 31031350534351. The reversal of 31031350534313 is 31343505313013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30289524902464 + 741825631849 = 5503592^2 + 861293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31031350534313 is a prime.

It is not a weakly prime, because it can be changed into another prime (31031350534813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15515675267156 + 15515675267157.

It is an arithmetic number, because the mean of its divisors is an integer number (15515675267157).

Almost surely, 2^{31031350534313} is an apocalyptic number.

It is an amenable number.

31031350534313 is a deficient number, since it is larger than the sum of its proper divisors (1).

31031350534313 is an equidigital number, since it uses as much as digits as its factorization.

31031350534313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72900, while the sum is 35.

Adding to 31031350534313 its reverse (31343505313013), we get a palindrome (62374855847326).

The spelling of 31031350534313 in words is "thirty-one trillion, thirty-one billion, three hundred fifty million, five hundred thirty-four thousand, three hundred thirteen".