231022212321011 has 12 divisors (see below), whose sum is σ = 254422149769872. Its totient is φ = 209347359441264.

The previous prime is 231022212320989. The next prime is 231022212321037. The reversal of 231022212321011 is 110123212220132.

It is not a de Polignac number, because 231022212321011 - 2²² = 231022208126707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231022212321071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13911964016 + ... + 13911980621.

It is an arithmetic number, because the mean of its divisors is an integer number (21201845814156).

Almost surely, 2^{231022212321011} is an apocalyptic number.

231022212321011 is a deficient number, since it is larger than the sum of its proper divisors (23399937448861).

231022212321011 is a wasteful number, since it uses less digits than its factorization.

231022212321011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27823944698 (or 27823944679 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 231022212321011 its reverse (110123212220132), we get a palindrome (341145424541143).

The spelling of 231022212321011 in words is "two hundred thirty-one trillion, twenty-two billion, two hundred twelve million, three hundred twenty-one thousand, eleven".