122312021123 has 2 divisors, whose sum is σ = 122312021124. Its totient is φ = 122312021122.

The previous prime is 122312021119. The next prime is 122312021179. The reversal of 122312021123 is 321120213221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122312021123 - 2² = 122312021119 is a prime.

It is a super-2 number, since 2×122312021123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122312021095 and 122312021104.

It is not a weakly prime, because it can be changed into another prime (122312021113) 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, 61156010561 + 61156010562.

It is an arithmetic number, because the mean of its divisors is an integer number (61156010562).

Almost surely, 2^122312021123 is an apocalyptic number.

122312021123 is a deficient number, since it is larger than the sum of its proper divisors (1).

122312021123 is an equidigital number, since it uses as much as digits as its factorization.

122312021123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 122312021123 its reverse (321120213221), we get a palindrome (443432234344).

The spelling of 122312021123 in words is "one hundred twenty-two billion, three hundred twelve million, twenty-one thousand, one hundred twenty-three".