231001012332 has 72 divisors (see below), whose sum is σ = 596573332992. Its totient is φ = 75332930400.

The previous prime is 231001012327. The next prime is 231001012349. The reversal of 231001012332 is 233210100132.

231001012332 is a `hidden beast` number, since 2 + 310 + 0 + 10 + 12 + 332 = 666.

231001012332 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231001012332² (a number of 24 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4595857 + ... + 4645847.

It is an arithmetic number, because the mean of its divisors is an integer number (8285740736).

Almost surely, 2^231001012332 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 231001012332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298286666496).

231001012332 is an abundant number, since it is smaller than the sum of its proper divisors (365572320660).

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

231001012332 is a wasteful number, since it uses less digits than its factorization.

231001012332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52779 (or 52774 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 231001012332 its reverse (233210100132), we get a palindrome (464211112464).

The spelling of 231001012332 in words is "two hundred thirty-one billion, one million, twelve thousand, three hundred thirty-two".