122023555131 has 4 divisors (see below), whose sum is σ = 162698073512. Its totient is φ = 81349036752.

The previous prime is 122023555123. The next prime is 122023555133. The reversal of 122023555131 is 131555320221.

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

It is not a de Polignac number, because 122023555131 - 2³ = 122023555123 is a prime.

It is a super-2 number, since 2×122023555131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122023555133) 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 in 3 ways as a sum of consecutive naturals, for example, 20337259186 + ... + 20337259191.

It is an arithmetic number, because the mean of its divisors is an integer number (40674518378).

Almost surely, 2^122023555131 is an apocalyptic number.

122023555131 is a deficient number, since it is larger than the sum of its proper divisors (40674518381).

122023555131 is an equidigital number, since it uses as much as digits as its factorization.

122023555131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40674518380.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 122023555131 its reverse (131555320221), we get a palindrome (253578875352).

The spelling of 122023555131 in words is "one hundred twenty-two billion, twenty-three million, five hundred fifty-five thousand, one hundred thirty-one".