231011231000 has 64 divisors (see below), whose sum is σ = 589708697760. Its totient is φ = 84004080000.

The previous prime is 231011230973. The next prime is 231011231023. The reversal of 231011231000 is 132110132.

231011231000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231011231000² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10489511 + ... + 10511510.

Almost surely, 2^231011231000 is an apocalyptic number.

231011231000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231011231000 is an abundant number, since it is smaller than the sum of its proper divisors (358697466760).

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

231011231000 is a wasteful number, since it uses less digits than its factorization.

231011231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21001053 (or 21001039 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 231011231000 its reverse (132110132), we get a palindrome (231143341132).

The spelling of 231011231000 in words is "two hundred thirty-one billion, eleven million, two hundred thirty-one thousand".