231022012331 has 8 divisors (see below), whose sum is σ = 254254315824. Its totient is φ = 208161425920.

The previous prime is 231022012321. The next prime is 231022012393. The reversal of 231022012331 is 133210220132.

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 231022012331 - 2²² = 231017818027 is a prime.

It is a super-2 number, since 2×231022012331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231022012321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92927966 + ... + 92930451.

It is an arithmetic number, because the mean of its divisors is an integer number (31781789478).

Almost surely, 2^231022012331 is an apocalyptic number.

231022012331 is a deficient number, since it is larger than the sum of its proper divisors (23232303493).

231022012331 is a wasteful number, since it uses less digits than its factorization.

231022012331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185858541.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 231022012331 its reverse (133210220132), we get a palindrome (364232232463).

The spelling of 231022012331 in words is "two hundred thirty-one billion, twenty-two million, twelve thousand, three hundred thirty-one".