12380497921 has 8 divisors (see below), whose sum is σ = 13580618688. Its totient is φ = 11192814000.

The previous prime is 12380497879. The next prime is 12380497939. The reversal of 12380497921 is 12979408321.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12380497921 - 2¹⁷ = 12380366849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12380497021) 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, 3107125 + ... + 3111106.

It is an arithmetic number, because the mean of its divisors is an integer number (1697577336).

Almost surely, 2^12380497921 is an apocalyptic number.

12380497921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12380497921 is a deficient number, since it is larger than the sum of its proper divisors (1200120767).

12380497921 is a wasteful number, since it uses less digits than its factorization.

12380497921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6218423.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 12380497921 in words is "twelve billion, three hundred eighty million, four hundred ninety-seven thousand, nine hundred twenty-one".