12423505555 has 8 divisors (see below), whose sum is σ = 14908924800. Its totient is φ = 9938325696.

The previous prime is 12423505541. The next prime is 12423505559. The reversal of 12423505555 is 55550532421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12423505555 - 2²³ = 12415116947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12423505559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87166 + ... + 180124.

It is an arithmetic number, because the mean of its divisors is an integer number (1863615600).

Almost surely, 2^12423505555 is an apocalyptic number.

12423505555 is a deficient number, since it is larger than the sum of its proper divisors (2485419245).

12423505555 is an equidigital number, since it uses as much as digits as its factorization.

12423505555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119693.

The product of its (nonzero) digits is 150000, while the sum is 37.

The spelling of 12423505555 in words is "twelve billion, four hundred twenty-three million, five hundred five thousand, five hundred fifty-five".