122011323131 has 2 divisors, whose sum is σ = 122011323132. Its totient is φ = 122011323130.

The previous prime is 122011323121. The next prime is 122011323163. The reversal of 122011323131 is 131323110221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122011323131 is a prime.

It is a super-2 number, since 2×122011323131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122011323121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61005661565 + 61005661566.

It is an arithmetic number, because the mean of its divisors is an integer number (61005661566).

Almost surely, 2^122011323131 is an apocalyptic number.

122011323131 is a deficient number, since it is larger than the sum of its proper divisors (1).

122011323131 is an equidigital number, since it uses as much as digits as its factorization.

122011323131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 122011323131 its reverse (131323110221), we get a palindrome (253334433352).

The spelling of 122011323131 in words is "one hundred twenty-two billion, eleven million, three hundred twenty-three thousand, one hundred thirty-one".