30231331032 has 128 divisors (see below), whose sum is σ = 88723353600. Its totient is φ = 8405831808.

The previous prime is 30231331007. The next prime is 30231331043. The reversal of 30231331032 is 23013313203.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 918069 + ... + 950427.

It is an arithmetic number, because the mean of its divisors is an integer number (693151200).

Almost surely, 2^30231331032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30231331032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44361676800).

30231331032 is an abundant number, since it is smaller than the sum of its proper divisors (58492022568).

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

30231331032 is a wasteful number, since it uses less digits than its factorization.

30231331032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32525 (or 32521 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 30231331032 its reverse (23013313203), we get a palindrome (53244644235).

The spelling of 30231331032 in words is "thirty billion, two hundred thirty-one million, three hundred thirty-one thousand, thirty-two".