122603431 has 2 divisors, whose sum is σ = 122603432. Its totient is φ = 122603430.

The previous prime is 122603423. The next prime is 122603471. The reversal of 122603431 is 134306221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122603431 - 2³ = 122603423 is a prime.

It is a super-2 number, since 2×122603431² = 30063202585943522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122603471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61301715 + 61301716.

It is an arithmetic number, because the mean of its divisors is an integer number (61301716).

Almost surely, 2^122603431 is an apocalyptic number.

122603431 is a deficient number, since it is larger than the sum of its proper divisors (1).

122603431 is an equidigital number, since it uses as much as digits as its factorization.

122603431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 122603431 is about 11072.6433610046. The cubic root of 122603431 is about 496.7839328428.

Adding to 122603431 its reverse (134306221), we get a palindrome (256909652).

The spelling of 122603431 in words is "one hundred twenty-two million, six hundred three thousand, four hundred thirty-one".