122311121023 has 72 divisors (see below), whose sum is σ = 159954797184. Its totient is φ = 92605161600.

The previous prime is 122311121017. The next prime is 122311121047. The reversal of 122311121023 is 320121113221.

It is a de Polignac number, because none of the positive numbers 2^k-122311121023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122311121003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 226083133 + ... + 226083673.

Almost surely, 2^122311121023 is an apocalyptic number.

122311121023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

122311121023 is a deficient number, since it is larger than the sum of its proper divisors (37643676161).

122311121023 is a wasteful number, since it uses less digits than its factorization.

122311121023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813 (or 699 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 122311121023 its reverse (320121113221), we get a palindrome (442432234244).

The spelling of 122311121023 in words is "one hundred twenty-two billion, three hundred eleven million, one hundred twenty-one thousand, twenty-three".