989113331031 has 32 divisors (see below), whose sum is σ = 1548406272000. Its totient is φ = 549841893120.

The previous prime is 989113331029. The next prime is 989113331071. The reversal of 989113331031 is 130133311989.

It is not a de Polignac number, because 989113331031 - 2¹ = 989113331029 is a prime.

It is a super-2 number, since 2×989113331031² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989113331071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1345351 + ... + 1946328.

It is an arithmetic number, because the mean of its divisors is an integer number (48387696000).

Almost surely, 2^989113331031 is an apocalyptic number.

989113331031 is a deficient number, since it is larger than the sum of its proper divisors (559292940969).

989113331031 is a wasteful number, since it uses less digits than its factorization.

989113331031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3292079.

The product of its (nonzero) digits is 52488, while the sum is 42.

The spelling of 989113331031 in words is "nine hundred eighty-nine billion, one hundred thirteen million, three hundred thirty-one thousand, thirty-one".