231122243245 has 16 divisors (see below), whose sum is σ = 277906464000. Its totient is φ = 184524976768.

The previous prime is 231122243221. The next prime is 231122243269. The reversal of 231122243245 is 542342221132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (231122243221) and next prime (231122243269).

It is a cyclic number.

It is not a de Polignac number, because 231122243245 - 2¹¹ = 231122241197 is a prime.

It is a congruent number.

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, 5313696 + ... + 5357014.

It is an arithmetic number, because the mean of its divisors is an integer number (17369154000).

Almost surely, 2^231122243245 is an apocalyptic number.

It is an amenable number.

231122243245 is a deficient number, since it is larger than the sum of its proper divisors (46784220755).

231122243245 is a wasteful number, since it uses less digits than its factorization.

231122243245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45452.

The product of its digits is 23040, while the sum is 31.

Adding to 231122243245 its reverse (542342221132), we get a palindrome (773464464377).

The spelling of 231122243245 in words is "two hundred thirty-one billion, one hundred twenty-two million, two hundred forty-three thousand, two hundred forty-five".