31034239989 has 4 divisors (see below), whose sum is σ = 41378986656. Its totient is φ = 20689493324.

The previous prime is 31034239967. The next prime is 31034240023. The reversal of 31034239989 is 98993243013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31034239989 - 2⁹ = 31034239477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31034239939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5172373329 + ... + 5172373334.

It is an arithmetic number, because the mean of its divisors is an integer number (10344746664).

Almost surely, 2^31034239989 is an apocalyptic number.

It is an amenable number.

31034239989 is a deficient number, since it is larger than the sum of its proper divisors (10344746667).

31034239989 is a wasteful number, since it uses less digits than its factorization.

31034239989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10344746666.

The product of its (nonzero) digits is 1259712, while the sum is 51.

The spelling of 31034239989 in words is "thirty-one billion, thirty-four million, two hundred thirty-nine thousand, nine hundred eighty-nine".