12379897321 has 12 divisors (see below), whose sum is σ = 13799322432. Its totient is φ = 11095931000.

The previous prime is 12379897307. The next prime is 12379897331.

12379897321 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-12379897321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12379897331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 711925 + ... + 729106.

It is an arithmetic number, because the mean of its divisors is an integer number (1149943536).

Almost surely, 2^12379897321 is an apocalyptic number.

12379897321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12379897321 is a deficient number, since it is larger than the sum of its proper divisors (1419425111).

12379897321 is a wasteful number, since it uses less digits than its factorization.

12379897321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441124 (or 1441113 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 52.

The spelling of 12379897321 in words is "twelve billion, three hundred seventy-nine million, eight hundred ninety-seven thousand, three hundred twenty-one".