31054988139671 has 2 divisors, whose sum is σ = 31054988139672. Its totient is φ = 31054988139670.

The previous prime is 31054988139631. The next prime is 31054988139727. The reversal of 31054988139671 is 17693188945013.

It is a weak prime.

It is an emirp because it is prime and its reverse (17693188945013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31054988139671 - 2⁶ = 31054988139607 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31054988139598 and 31054988139607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31054988139631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15527494069835 + 15527494069836.

It is an arithmetic number, because the mean of its divisors is an integer number (15527494069836).

Almost surely, 2^{31054988139671} is an apocalyptic number.

31054988139671 is a deficient number, since it is larger than the sum of its proper divisors (1).

31054988139671 is an equidigital number, since it uses as much as digits as its factorization.

31054988139671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39191040, while the sum is 65.

The spelling of 31054988139671 in words is "thirty-one trillion, fifty-four billion, nine hundred eighty-eight million, one hundred thirty-nine thousand, six hundred seventy-one".