122313123131 has 4 divisors (see below), whose sum is σ = 122321562000. Its totient is φ = 122304684264.

The previous prime is 122313123113. The next prime is 122313123151. The reversal of 122313123131 is 131321313221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122313123131 is a prime.

It is a super-2 number, since 2×122313123131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122313123097 and 122313123106.

It is not an unprimeable number, because it can be changed into a prime (122313123151) 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, 4197656 + ... + 4226693.

It is an arithmetic number, because the mean of its divisors is an integer number (30580390500).

Almost surely, 2^122313123131 is an apocalyptic number.

122313123131 is a deficient number, since it is larger than the sum of its proper divisors (8438869).

122313123131 is an equidigital number, since it uses as much as digits as its factorization.

122313123131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8438868.

The product of its digits is 648, while the sum is 23.

Adding to 122313123131 its reverse (131321313221), we get a palindrome (253634436352).

The spelling of 122313123131 in words is "one hundred twenty-two billion, three hundred thirteen million, one hundred twenty-three thousand, one hundred thirty-one".