122131121313 has 4 divisors (see below), whose sum is σ = 162841495088. Its totient is φ = 81420747540.

The previous prime is 122131121311. The next prime is 122131121341. The reversal of 122131121313 is 313121131221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 122131121313 - 2¹ = 122131121311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122131121313.

It is not an unprimeable number, because it can be changed into a prime (122131121311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20355186883 + ... + 20355186888.

It is an arithmetic number, because the mean of its divisors is an integer number (40710373772).

Almost surely, 2^122131121313 is an apocalyptic number.

It is an amenable number.

122131121313 is a deficient number, since it is larger than the sum of its proper divisors (40710373775).

122131121313 is an equidigital number, since it uses as much as digits as its factorization.

122131121313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40710373774.

The product of its digits is 216, while the sum is 21.

Adding to 122131121313 its reverse (313121131221), we get a palindrome (435252252534).

The spelling of 122131121313 in words is "one hundred twenty-two billion, one hundred thirty-one million, one hundred twenty-one thousand, three hundred thirteen".