31020034230 has 96 divisors (see below), whose sum is σ = 81494899200. Its totient is φ = 8185764096.

The previous prime is 31020034229. The next prime is 31020034247. The reversal of 31020034230 is 3243002013.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10662016 + ... + 10664924.

It is an arithmetic number, because the mean of its divisors is an integer number (848905200).

Almost surely, 2^31020034230 is an apocalyptic number.

31020034230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31020034230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40747449600).

31020034230 is an abundant number, since it is smaller than the sum of its proper divisors (50474864970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31020034230 is a wasteful number, since it uses less digits than its factorization.

31020034230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4118 (or 4115 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 31020034230 its reverse (3243002013), we get a palindrome (34263036243).

The spelling of 31020034230 in words is "thirty-one billion, twenty million, thirty-four thousand, two hundred thirty".