123430400401 has 32 divisors (see below), whose sum is σ = 155043302400. Its totient is φ = 95458046400.

The previous prime is 123430400399. The next prime is 123430400417. The reversal of 123430400401 is 104004034321.

It is a cyclic number.

It is not a de Polignac number, because 123430400401 - 2¹ = 123430400399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123430400491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17561650 + ... + 17568676.

It is an arithmetic number, because the mean of its divisors is an integer number (4845103200).

Almost surely, 2^123430400401 is an apocalyptic number.

123430400401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123430400401 is a deficient number, since it is larger than the sum of its proper divisors (31612901999).

123430400401 is a wasteful number, since it uses less digits than its factorization.

123430400401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8725.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 123430400401 its reverse (104004034321), we get a palindrome (227434434722).

The spelling of 123430400401 in words is "one hundred twenty-three billion, four hundred thirty million, four hundred thousand, four hundred one".