812300431 has 2 divisors, whose sum is σ = 812300432. Its totient is φ = 812300430.

The previous prime is 812300383. The next prime is 812300441. The reversal of 812300431 is 134003218.

812300431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 812300431 - 2²⁵ = 778745999 is a prime.

It is a super-2 number, since 2×812300431² = 1319663980405571522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (812300441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406150215 + 406150216.

It is an arithmetic number, because the mean of its divisors is an integer number (406150216).

Almost surely, 2^812300431 is an apocalyptic number.

812300431 is a deficient number, since it is larger than the sum of its proper divisors (1).

812300431 is an equidigital number, since it uses as much as digits as its factorization.

812300431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 812300431 is about 28500.8847406532. The cubic root of 812300431 is about 933.0513836130.

Adding to 812300431 its reverse (134003218), we get a palindrome (946303649).

The spelling of 812300431 in words is "eight hundred twelve million, three hundred thousand, four hundred thirty-one".