2231000432531 has 8 divisors (see below), whose sum is σ = 2404057155024. Its totient is φ = 2058149610720.

The previous prime is 2231000432491. The next prime is 2231000432603. The reversal of 2231000432531 is 1352340001322.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2231000432531 - 2³⁸ = 1956122525587 is a prime.

It is a super-3 number, since 3×2231000432531³ (a number of 38 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 self number, because there is not a number n which added to its sum of digits gives 2231000432531.

It is not an unprimeable number, because it can be changed into a prime (2231000432431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51452660 + ... + 51496001.

It is an arithmetic number, because the mean of its divisors is an integer number (300507144378).

Almost surely, 2^{2231000432531} is an apocalyptic number.

2231000432531 is a deficient number, since it is larger than the sum of its proper divisors (173056722493).

2231000432531 is a wasteful number, since it uses less digits than its factorization.

2231000432531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102950341.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 2231000432531 its reverse (1352340001322), we get a palindrome (3583340433853).

The spelling of 2231000432531 in words is "two trillion, two hundred thirty-one billion, four hundred thirty-two thousand, five hundred thirty-one".