122478023 has 2 divisors, whose sum is σ = 122478024. Its totient is φ = 122478022.

The previous prime is 122478017. The next prime is 122478113. The reversal of 122478023 is 320874221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122478023 - 2⁸ = 122477767 is a prime.

It is a super-2 number, since 2×122478023² = 30001732235977058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122478623) 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, 61239011 + 61239012.

It is an arithmetic number, because the mean of its divisors is an integer number (61239012).

Almost surely, 2^122478023 is an apocalyptic number.

122478023 is a deficient number, since it is larger than the sum of its proper divisors (1).

122478023 is an equidigital number, since it uses as much as digits as its factorization.

122478023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 122478023 is about 11066.9789463973. The cubic root of 122478023 is about 496.6144924148.

The spelling of 122478023 in words is "one hundred twenty-two million, four hundred seventy-eight thousand, twenty-three".