431110993 has 4 divisors (see below), whose sum is σ = 431179840. Its totient is φ = 431042148.

The previous prime is 431110987. The next prime is 431111033. The reversal of 431110993 is 399011134.

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 431110993 - 2⁵ = 431110961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431110903) 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, 23973 + ... + 37906.

It is an arithmetic number, because the mean of its divisors is an integer number (107794960).

Almost surely, 2^431110993 is an apocalyptic number.

It is an amenable number.

431110993 is a deficient number, since it is larger than the sum of its proper divisors (68847).

431110993 is an equidigital number, since it uses as much as digits as its factorization.

431110993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68846.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 431110993 is about 20763.2124922903. The cubic root of 431110993 is about 755.4337188980.

The spelling of 431110993 in words is "four hundred thirty-one million, one hundred ten thousand, nine hundred ninety-three".