12801601123 has 4 divisors (see below), whose sum is σ = 12803959368. Its totient is φ = 12799242880.

The previous prime is 12801601117. The next prime is 12801601129. The reversal of 12801601123 is 32110610821.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12801601117) and next prime (12801601129).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12801601123 is a prime.

It is a super-2 number, since 2×12801601123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12801601129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1170961 + ... + 1181842.

It is an arithmetic number, because the mean of its divisors is an integer number (3200989842).

Almost surely, 2^12801601123 is an apocalyptic number.

12801601123 is a deficient number, since it is larger than the sum of its proper divisors (2358245).

12801601123 is an equidigital number, since it uses as much as digits as its factorization.

12801601123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358244.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 12801601123 in words is "twelve billion, eight hundred one million, six hundred one thousand, one hundred twenty-three".