31050238493 has 2 divisors, whose sum is σ = 31050238494. Its totient is φ = 31050238492.

The previous prime is 31050238481. The next prime is 31050238517. The reversal of 31050238493 is 39483205013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30645303364 + 404935129 = 175058^2 + 20123^2 .

It is a cyclic number.

It is not a de Polignac number, because 31050238493 - 2⁸ = 31050238237 is a prime.

It is a super-2 number, since 2×31050238493² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31050235493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15525119246 + 15525119247.

It is an arithmetic number, because the mean of its divisors is an integer number (15525119247).

Almost surely, 2^31050238493 is an apocalyptic number.

It is an amenable number.

31050238493 is a deficient number, since it is larger than the sum of its proper divisors (1).

31050238493 is an equidigital number, since it uses as much as digits as its factorization.

31050238493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 31050238493 in words is "thirty-one billion, fifty million, two hundred thirty-eight thousand, four hundred ninety-three".