231132022 has 12 divisors (see below), whose sum is σ = 381081708. Its totient is φ = 105059900.

The previous prime is 231132019. The next prime is 231132029. The reversal of 231132022 is 220231132.

It is a junction number, because it is equal to n+sod(n) for n = 231131987 and 231132005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231132029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 477304 + ... + 477787.

It is an arithmetic number, because the mean of its divisors is an integer number (31756809).

Almost surely, 2^231132022 is an apocalyptic number.

231132022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231132022 is a deficient number, since it is larger than the sum of its proper divisors (149949686).

231132022 is a wasteful number, since it uses less digits than its factorization.

231132022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955115 (or 955104 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 231132022 is about 15203.0267381203. The cubic root of 231132022 is about 613.6961134201.

Adding to 231132022 its reverse (220231132), we get a palindrome (451363154).

The spelling of 231132022 in words is "two hundred thirty-one million, one hundred thirty-two thousand, twenty-two".