431221300399 has 16 divisors (see below), whose sum is σ = 473193778176. Its totient is φ = 391198320000.

The previous prime is 431221300397. The next prime is 431221300427. The reversal of 431221300399 is 993003122134.

It is a cyclic number.

It is not a de Polignac number, because 431221300399 - 2¹ = 431221300397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431221300397) 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, 1497717 + ... + 1762270.

It is an arithmetic number, because the mean of its divisors is an integer number (29574611136).

Almost surely, 2^431221300399 is an apocalyptic number.

431221300399 is a deficient number, since it is larger than the sum of its proper divisors (41972477777).

431221300399 is a wasteful number, since it uses less digits than its factorization.

431221300399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260286.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 431221300399 in words is "four hundred thirty-one billion, two hundred twenty-one million, three hundred thousand, three hundred ninety-nine".