31231203020232 has 128 divisors (see below), whose sum is σ = 81725892192000. Its totient is φ = 9926877728768.

The previous prime is 31231203020167. The next prime is 31231203020243. The reversal of 31231203020232 is 23202030213213.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 230507644 + ... + 230643092.

It is an arithmetic number, because the mean of its divisors is an integer number (638483532750).

Almost surely, 2^{31231203020232} 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 31231203020232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40862946096000).

31231203020232 is an abundant number, since it is smaller than the sum of its proper divisors (50494689171768).

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

31231203020232 is a wasteful number, since it uses less digits than its factorization.

31231203020232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136775 (or 136771 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 31231203020232 its reverse (23202030213213), we get a palindrome (54433233233445).

The spelling of 31231203020232 in words is "thirty-one trillion, two hundred thirty-one billion, two hundred three million, twenty thousand, two hundred thirty-two".