122313031231 has 4 divisors (see below), whose sum is σ = 122527240264. Its totient is φ = 122098822200.

The previous prime is 122313031219. The next prime is 122313031289. The reversal of 122313031231 is 132130313221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122313031231 - 2¹¹ = 122313029183 is a prime.

It is a super-2 number, since 2×122313031231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122313031531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107103660 + ... + 107104801.

It is an arithmetic number, because the mean of its divisors is an integer number (30631810066).

Almost surely, 2^122313031231 is an apocalyptic number.

122313031231 is a deficient number, since it is larger than the sum of its proper divisors (214209033).

122313031231 is an equidigital number, since it uses as much as digits as its factorization.

122313031231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214209032.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 122313031231 its reverse (132130313221), we get a palindrome (254443344452).

The spelling of 122313031231 in words is "one hundred twenty-two billion, three hundred thirteen million, thirty-one thousand, two hundred thirty-one".