10321320399 has 16 divisors (see below), whose sum is σ = 14882380800. Its totient is φ = 6325000416.

The previous prime is 10321320397. The next prime is 10321320413. The reversal of 10321320399 is 99302312301.

It is not a de Polignac number, because 10321320399 - 2¹ = 10321320397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10321320397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544339 + ... + 562980.

It is an arithmetic number, because the mean of its divisors is an integer number (930148800).

Almost surely, 2^10321320399 is an apocalyptic number.

10321320399 is a deficient number, since it is larger than the sum of its proper divisors (4561060401).

10321320399 is a wasteful number, since it uses less digits than its factorization.

10321320399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107574.

The product of its (nonzero) digits is 8748, while the sum is 33.

The spelling of 10321320399 in words is "ten billion, three hundred twenty-one million, three hundred twenty thousand, three hundred ninety-nine".