431238889371 has 4 divisors (see below), whose sum is σ = 574985185832. Its totient is φ = 287492592912.

The previous prime is 431238889357. The next prime is 431238889373. The reversal of 431238889371 is 173988832134.

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

It is not a de Polignac number, because 431238889371 - 2¹⁷ = 431238758299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431238889373) 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, 71873148226 + ... + 71873148231.

It is an arithmetic number, because the mean of its divisors is an integer number (143746296458).

Almost surely, 2^431238889371 is an apocalyptic number.

431238889371 is a deficient number, since it is larger than the sum of its proper divisors (143746296461).

431238889371 is a wasteful number, since it uses less digits than its factorization.

431238889371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143746296460.

The product of its digits is 6967296, while the sum is 57.

The spelling of 431238889371 in words is "four hundred thirty-one billion, two hundred thirty-eight million, eight hundred eighty-nine thousand, three hundred seventy-one".