12320480157 has 4 divisors (see below), whose sum is σ = 16427306880. Its totient is φ = 8213653436.

The previous prime is 12320480149. The next prime is 12320480171. The reversal of 12320480157 is 75108402321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12320480157 - 2³ = 12320480149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320440157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2053413357 + ... + 2053413362.

It is an arithmetic number, because the mean of its divisors is an integer number (4106826720).

Almost surely, 2^12320480157 is an apocalyptic number.

It is an amenable number.

12320480157 is a deficient number, since it is larger than the sum of its proper divisors (4106826723).

12320480157 is an equidigital number, since it uses as much as digits as its factorization.

12320480157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106826722.

The product of its (nonzero) digits is 13440, while the sum is 33.

Adding to 12320480157 its reverse (75108402321), we get a palindrome (87428882478).

The spelling of 12320480157 in words is "twelve billion, three hundred twenty million, four hundred eighty thousand, one hundred fifty-seven".