13121302323 has 8 divisors (see below), whose sum is σ = 17591728336. Its totient is φ = 8699205600.

The previous prime is 13121302309. The next prime is 13121302373. The reversal of 13121302323 is 32320312131.

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

It is not a de Polignac number, because 13121302323 - 2¹² = 13121298227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13121302323.

It is not an unprimeable number, because it can be changed into a prime (13121302373) 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, 12081688 + ... + 12082773.

It is an arithmetic number, because the mean of its divisors is an integer number (2198966042).

Almost surely, 2^13121302323 is an apocalyptic number.

13121302323 is a deficient number, since it is larger than the sum of its proper divisors (4470426013).

13121302323 is a wasteful number, since it uses less digits than its factorization.

13121302323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24164645.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13121302323 its reverse (32320312131), we get a palindrome (45441614454).

The spelling of 13121302323 in words is "thirteen billion, one hundred twenty-one million, three hundred two thousand, three hundred twenty-three".