31042421022377 has 2 divisors, whose sum is σ = 31042421022378. Its totient is φ = 31042421022376.

The previous prime is 31042421022329. The next prime is 31042421022469. The reversal of 31042421022377 is 77322012424013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22193247762841 + 8849173259536 = 4710971^2 + 2974756^2 .

It is a cyclic number.

It is not a de Polignac number, because 31042421022377 - 2²⁰ = 31042419973801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31042421022377.

It is not a weakly prime, because it can be changed into another prime (31042421022677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15521210511188 + 15521210511189.

It is an arithmetic number, because the mean of its divisors is an integer number (15521210511189).

Almost surely, 2^{31042421022377} is an apocalyptic number.

It is an amenable number.

31042421022377 is a deficient number, since it is larger than the sum of its proper divisors (1).

31042421022377 is an equidigital number, since it uses as much as digits as its factorization.

31042421022377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 38.

The spelling of 31042421022377 in words is "thirty-one trillion, forty-two billion, four hundred twenty-one million, twenty-two thousand, three hundred seventy-seven".