31985048119 has 2 divisors, whose sum is σ = 31985048120. Its totient is φ = 31985048118.

The previous prime is 31985047979. The next prime is 31985048129. The reversal of 31985048119 is 91184058913.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31985048119 - 2⁹ = 31985047607 is a prime.

It is a super-2 number, since 2×31985048119² (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 (31985048129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15992524059 + 15992524060.

It is an arithmetic number, because the mean of its divisors is an integer number (15992524060).

Almost surely, 2^31985048119 is an apocalyptic number.

31985048119 is a deficient number, since it is larger than the sum of its proper divisors (1).

31985048119 is an equidigital number, since it uses as much as digits as its factorization.

31985048119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 49.

The spelling of 31985048119 in words is "thirty-one billion, nine hundred eighty-five million, forty-eight thousand, one hundred nineteen".