122235431 has 2 divisors, whose sum is σ = 122235432. Its totient is φ = 122235430.

The previous prime is 122235413. The next prime is 122235439. The reversal of 122235431 is 134532221.

Together with previous prime (122235413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122235431 - 2²² = 118041127 is a prime.

It is a super-2 number, since 2×122235431² = 29883001183511522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122235397 and 122235406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122235439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61117715 + 61117716.

It is an arithmetic number, because the mean of its divisors is an integer number (61117716).

Almost surely, 2^122235431 is an apocalyptic number.

122235431 is a deficient number, since it is larger than the sum of its proper divisors (1).

122235431 is an equidigital number, since it uses as much as digits as its factorization.

122235431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 122235431 is about 11056.0133411642. The cubic root of 122235431 is about 496.2863945543.

Adding to 122235431 its reverse (134532221), we get a palindrome (256767652).

The spelling of 122235431 in words is "one hundred twenty-two million, two hundred thirty-five thousand, four hundred thirty-one".