231011233031 has 8 divisors (see below), whose sum is σ = 245577342000. Its totient is φ = 216685886400.

The previous prime is 231011233027. The next prime is 231011233147. The reversal of 231011233031 is 130332110132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231011233031 - 2² = 231011233027 is a prime.

It is a super-2 number, since 2×231011233031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231011232994 and 231011233012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231011230031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60188606 + ... + 60192443.

It is an arithmetic number, because the mean of its divisors is an integer number (30697167750).

Almost surely, 2^231011233031 is an apocalyptic number.

231011233031 is a deficient number, since it is larger than the sum of its proper divisors (14566108969).

231011233031 is a wasteful number, since it uses less digits than its factorization.

231011233031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120381169.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 231011233031 its reverse (130332110132), we get a palindrome (361343343163).

The spelling of 231011233031 in words is "two hundred thirty-one billion, eleven million, two hundred thirty-three thousand, thirty-one".