431423043347 has 4 divisors (see below), whose sum is σ = 432980527536. Its totient is φ = 429865559160.

The previous prime is 431423043281. The next prime is 431423043349. The reversal of 431423043347 is 743340324134.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 431423043347 - 2³⁸ = 156545136403 is a prime.

It is a super-2 number, since 2×431423043347² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 431423043347.

It is not an unprimeable number, because it can be changed into a prime (431423043349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 778741679 + ... + 778742232.

It is an arithmetic number, because the mean of its divisors is an integer number (108245131884).

Almost surely, 2^431423043347 is an apocalyptic number.

431423043347 is a deficient number, since it is larger than the sum of its proper divisors (1557484189).

431423043347 is a wasteful number, since it uses less digits than its factorization.

431423043347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557484188.

The product of its (nonzero) digits is 290304, while the sum is 38.

The spelling of 431423043347 in words is "four hundred thirty-one billion, four hundred twenty-three million, forty-three thousand, three hundred forty-seven".