231310022 has 8 divisors (see below), whose sum is σ = 348150096. Its totient is φ = 115259992.

The previous prime is 231310019. The next prime is 231310091. The reversal of 231310022 is 220013132.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 231309979 and 231310006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196778 + ... + 197949.

It is an arithmetic number, because the mean of its divisors is an integer number (43518762).

Almost surely, 2^231310022 is an apocalyptic number.

231310022 is a deficient number, since it is larger than the sum of its proper divisors (116840074).

231310022 is a wasteful number, since it uses less digits than its factorization.

231310022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395022.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 231310022 is about 15208.8797089069. The cubic root of 231310022 is about 613.8536134166.

Adding to 231310022 its reverse (220013132), we get a palindrome (451323154).

The spelling of 231310022 in words is "two hundred thirty-one million, three hundred ten thousand, twenty-two".