31077389491241 has 2 divisors, whose sum is σ = 31077389491242. Its totient is φ = 31077389491240.

The previous prime is 31077389491151. The next prime is 31077389491271. The reversal of 31077389491241 is 14219498377013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21535493203225 + 9541896288016 = 4640635^2 + 3088996^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31077389491241 is a prime.

It is not a weakly prime, because it can be changed into another prime (31077389491271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15538694745620 + 15538694745621.

It is an arithmetic number, because the mean of its divisors is an integer number (15538694745621).

Almost surely, 2^{31077389491241} is an apocalyptic number.

It is an amenable number.

31077389491241 is a deficient number, since it is larger than the sum of its proper divisors (1).

31077389491241 is an equidigital number, since it uses as much as digits as its factorization.

31077389491241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9144576, while the sum is 59.

The spelling of 31077389491241 in words is "thirty-one trillion, seventy-seven billion, three hundred eighty-nine million, four hundred ninety-one thousand, two hundred forty-one".