31011233089 has 2 divisors, whose sum is σ = 31011233090. Its totient is φ = 31011233088.

The previous prime is 31011233087. The next prime is 31011233117. The reversal of 31011233089 is 98033211013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30919705600 + 91527489 = 175840^2 + 9567^2 .

It is a cyclic number.

It is not a de Polignac number, because 31011233089 - 2¹ = 31011233087 is a prime.

Together with 31011233087, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 31011233089.

It is not a weakly prime, because it can be changed into another prime (31011233087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15505616544 + 15505616545.

It is an arithmetic number, because the mean of its divisors is an integer number (15505616545).

Almost surely, 2^31011233089 is an apocalyptic number.

It is an amenable number.

31011233089 is a deficient number, since it is larger than the sum of its proper divisors (1).

31011233089 is an equidigital number, since it uses as much as digits as its factorization.

31011233089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 31011233089 in words is "thirty-one billion, eleven million, two hundred thirty-three thousand, eighty-nine".