31023013331249 has 2 divisors, whose sum is σ = 31023013331250. Its totient is φ = 31023013331248.

The previous prime is 31023013331197. The next prime is 31023013331267. The reversal of 31023013331249 is 94213331032013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30999728707600 + 23284623649 = 5567740^2 + 152593^2 .

It is a cyclic number.

It is not a de Polignac number, because 31023013331249 - 2⁸ = 31023013330993 is a prime.

It is not a weakly prime, because it can be changed into another prime (31023013331279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15511506665624 + 15511506665625.

It is an arithmetic number, because the mean of its divisors is an integer number (15511506665625).

Almost surely, 2^{31023013331249} is an apocalyptic number.

It is an amenable number.

31023013331249 is a deficient number, since it is larger than the sum of its proper divisors (1).

31023013331249 is an equidigital number, since it uses as much as digits as its factorization.

31023013331249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 35.

The spelling of 31023013331249 in words is "thirty-one trillion, twenty-three billion, thirteen million, three hundred thirty-one thousand, two hundred forty-nine".