231312122022442 has 16 divisors (see below), whose sum is σ = 347766820632000. Its totient is φ = 115389861020640.

The previous prime is 231312122022413. The next prime is 231312122022491. The reversal of 231312122022442 is 244220221213132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34024342 + ... + 40252702.

It is an arithmetic number, because the mean of its divisors is an integer number (21735426289500).

Almost surely, 2^{231312122022442} is an apocalyptic number.

231312122022442 is a deficient number, since it is larger than the sum of its proper divisors (116454698609558).

231312122022442 is a wasteful number, since it uses less digits than its factorization.

231312122022442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6271101.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 231312122022442 its reverse (244220221213132), we get a palindrome (475532343235574).

The spelling of 231312122022442 in words is "two hundred thirty-one trillion, three hundred twelve billion, one hundred twenty-two million, twenty-two thousand, four hundred forty-two".