12477249321 has 4 divisors (see below), whose sum is σ = 16636332432. Its totient is φ = 8318166212.

The previous prime is 12477249319. The next prime is 12477249361. The reversal of 12477249321 is 12394277421.

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 12477249321 - 2¹ = 12477249319 is a prime.

It is a super-2 number, since 2×12477249321² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12477249361) 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, 2079541551 + ... + 2079541556.

It is an arithmetic number, because the mean of its divisors is an integer number (4159083108).

Almost surely, 2^12477249321 is an apocalyptic number.

It is an amenable number.

12477249321 is a deficient number, since it is larger than the sum of its proper divisors (4159083111).

12477249321 is an equidigital number, since it uses as much as digits as its factorization.

12477249321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4159083110.

The product of its digits is 169344, while the sum is 42.

The spelling of 12477249321 in words is "twelve billion, four hundred seventy-seven million, two hundred forty-nine thousand, three hundred twenty-one".