31010048989 has 2 divisors, whose sum is σ = 31010048990. Its totient is φ = 31010048988.

The previous prime is 31010048921. The next prime is 31010049029. The reversal of 31010048989 is 98984001013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15947396089 + 15062652900 = 126283^2 + 122730^2 .

It is a cyclic number.

It is not a de Polignac number, because 31010048989 - 2⁹ = 31010048477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31010048189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15505024494 + 15505024495.

It is an arithmetic number, because the mean of its divisors is an integer number (15505024495).

Almost surely, 2^31010048989 is an apocalyptic number.

It is an amenable number.

31010048989 is a deficient number, since it is larger than the sum of its proper divisors (1).

31010048989 is an equidigital number, since it uses as much as digits as its factorization.

31010048989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 31010048989 in words is "thirty-one billion, ten million, forty-eight thousand, nine hundred eighty-nine".