123402442401 has 12 divisors (see below), whose sum is σ = 203711968512. Its totient is φ = 70515681336.

The previous prime is 123402442369. The next prime is 123402442507. The reversal of 123402442401 is 104244204321.

123402442401 is a `hidden beast` number, since 1 + 234 + 0 + 2 + 4 + 424 + 0 + 1 = 666.

It is not a de Polignac number, because 123402442401 - 2⁵ = 123402442369 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123402441401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 979384401 + ... + 979384526.

It is an arithmetic number, because the mean of its divisors is an integer number (16975997376).

Almost surely, 2^123402442401 is an apocalyptic number.

It is an amenable number.

123402442401 is a deficient number, since it is larger than the sum of its proper divisors (80309526111).

123402442401 is a wasteful number, since it uses less digits than its factorization.

123402442401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958768940 (or 1958768937 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 123402442401 its reverse (104244204321), we get a palindrome (227646646722).

The spelling of 123402442401 in words is "one hundred twenty-three billion, four hundred two million, four hundred forty-two thousand, four hundred one".