31031301293 has 2 divisors, whose sum is σ = 31031301294. Its totient is φ = 31031301292.

The previous prime is 31031301269. The next prime is 31031301341. The reversal of 31031301293 is 39210313013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19349366404 + 11681934889 = 139102^2 + 108083^2 .

It is a cyclic number.

It is not a de Polignac number, because 31031301293 - 2¹⁴ = 31031284909 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31031301263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15515650646 + 15515650647.

It is an arithmetic number, because the mean of its divisors is an integer number (15515650647).

Almost surely, 2^31031301293 is an apocalyptic number.

It is an amenable number.

31031301293 is a deficient number, since it is larger than the sum of its proper divisors (1).

31031301293 is an equidigital number, since it uses as much as digits as its factorization.

31031301293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 26.

The spelling of 31031301293 in words is "thirty-one billion, thirty-one million, three hundred one thousand, two hundred ninety-three".