12402432355 has 4 divisors (see below), whose sum is σ = 14882918832. Its totient is φ = 9921945880.

The previous prime is 12402432313. The next prime is 12402432373. The reversal of 12402432355 is 55323420421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55323420421 = 4643 ⋅11915447.

It is not a de Polignac number, because 12402432355 - 2⁹ = 12402431843 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1240243231 + ... + 1240243240.

It is an arithmetic number, because the mean of its divisors is an integer number (3720729708).

Almost surely, 2^12402432355 is an apocalyptic number.

12402432355 is a deficient number, since it is larger than the sum of its proper divisors (2480486477).

12402432355 is an equidigital number, since it uses as much as digits as its factorization.

12402432355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480486476.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 12402432355 its reverse (55323420421), we get a palindrome (67725852776).

The spelling of 12402432355 in words is "twelve billion, four hundred two million, four hundred thirty-two thousand, three hundred fifty-five".