30985890331 has 8 divisors (see below), whose sum is σ = 33808130928. Its totient is φ = 28164540000.

The previous prime is 30985890317. The next prime is 30985890337. The reversal of 30985890331 is 13309858903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30985890331 - 2⁹ = 30985889819 is a prime.

It is a super-2 number, since 2×30985890331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30985890337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148720 + ... + 289981.

It is an arithmetic number, because the mean of its divisors is an integer number (4226016366).

Almost surely, 2^30985890331 is an apocalyptic number.

30985890331 is a deficient number, since it is larger than the sum of its proper divisors (2822240597).

30985890331 is a wasteful number, since it uses less digits than its factorization.

30985890331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445133.

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 30985890331 in words is "thirty billion, nine hundred eighty-five million, eight hundred ninety thousand, three hundred thirty-one".