231011022 has 32 divisors (see below), whose sum is σ = 508207104. Its totient is φ = 70000920.

The previous prime is 231011021. The next prime is 231011023. The reversal of 231011022 is 220110132.

231011022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231011021) and next prime (231011023).

It is a junction number, because it is equal to n+sod(n) for n = 231010989 and 231011007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231011021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6478 + ... + 22449.

It is an arithmetic number, because the mean of its divisors is an integer number (15881472).

Almost surely, 2^231011022 is an apocalyptic number.

231011022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231011022 is an abundant number, since it is smaller than the sum of its proper divisors (277196082).

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

231011022 is a wasteful number, since it uses less digits than its factorization.

231011022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28965 (or 28943 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 231011022 is about 15199.0467464246. The cubic root of 231011022 is about 613.5890026428.

Adding to 231011022 its reverse (220110132), we get a palindrome (451121154).

It can be divided in two parts, 2310110 and 22, that added together give a palindrome (2310132).

The spelling of 231011022 in words is "two hundred thirty-one million, eleven thousand, twenty-two".