231311312322 has 32 divisors (see below), whose sum is σ = 470079529920. Its totient is φ = 75865996800.

The previous prime is 231311312233. The next prime is 231311312333. The reversal of 231311312322 is 223213113132.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 231311312292 and 231311312301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446679 + ... + 813722.

It is an arithmetic number, because the mean of its divisors is an integer number (14689985310).

Almost surely, 2^231311312322 is an apocalyptic number.

231311312322 is an abundant number, since it is smaller than the sum of its proper divisors (238768217598).

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

231311312322 is a wasteful number, since it uses less digits than its factorization.

231311312322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260898.

The product of its digits is 1296, while the sum is 24.

Adding to 231311312322 its reverse (223213113132), we get a palindrome (454524425454).

The spelling of 231311312322 in words is "two hundred thirty-one billion, three hundred eleven million, three hundred twelve thousand, three hundred twenty-two".