31041352493 has 2 divisors, whose sum is σ = 31041352494. Its totient is φ = 31041352492.

The previous prime is 31041352421. The next prime is 31041352513. The reversal of 31041352493 is 39425314013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22712599849 + 8328752644 = 150707^2 + 91262^2 .

It is a cyclic number.

It is not a de Polignac number, because 31041352493 - 2¹⁸ = 31041090349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31041352393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15520676246 + 15520676247.

It is an arithmetic number, because the mean of its divisors is an integer number (15520676247).

Almost surely, 2^31041352493 is an apocalyptic number.

It is an amenable number.

31041352493 is a deficient number, since it is larger than the sum of its proper divisors (1).

31041352493 is an equidigital number, since it uses as much as digits as its factorization.

31041352493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 31041352493 in words is "thirty-one billion, forty-one million, three hundred fifty-two thousand, four hundred ninety-three".