2231000431 has 4 divisors (see below), whose sum is σ = 2433818664. Its totient is φ = 2028182200.

The previous prime is 2231000407. The next prime is 2231000449. The reversal of 2231000431 is 1340001322.

It is a happy number.

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

It is not a de Polignac number, because 2231000431 - 2⁹ = 2230999919 is a prime.

It is a super-3 number, since 3×2231000431³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231000531) 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, 101409100 + ... + 101409121.

It is an arithmetic number, because the mean of its divisors is an integer number (608454666).

Almost surely, 2^2231000431 is an apocalyptic number.

2231000431 is a deficient number, since it is larger than the sum of its proper divisors (202818233).

2231000431 is a wasteful number, since it uses less digits than its factorization.

2231000431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202818232.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2231000431 is about 47233.4672769214. The cubic root of 2231000431 is about 1306.6718991082.

Adding to 2231000431 its reverse (1340001322), we get a palindrome (3571001753).

The spelling of 2231000431 in words is "two billion, two hundred thirty-one million, four hundred thirty-one", and thus it is an aban number.