2231432231 has 8 divisors (see below), whose sum is σ = 2638146720. Its totient is φ = 1846702368.

The previous prime is 2231432227. The next prime is 2231432279. The reversal of 2231432231 is 1322341322.

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

It is not a de Polignac number, because 2231432231 - 2² = 2231432227 is a prime.

It is a super-3 number, since 3×2231432231³ (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 junction number, because it is equal to n+sod(n) for n = 2231432197 and 2231432206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231432221) 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, 5495936 + ... + 5496341.

It is an arithmetic number, because the mean of its divisors is an integer number (329768340).

Almost surely, 2^2231432231 is an apocalyptic number.

2231432231 is a deficient number, since it is larger than the sum of its proper divisors (406714489).

2231432231 is a wasteful number, since it uses less digits than its factorization.

2231432231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10992313.

The product of its digits is 1728, while the sum is 23.

The square root of 2231432231 is about 47238.0379672992. The cubic root of 2231432231 is about 1306.7561938071.

Adding to 2231432231 its reverse (1322341322), we get a palindrome (3553773553).

Subtracting from 2231432231 its reverse (1322341322), we obtain a palindrome (909090909).

It can be divided in two parts, 22314 and 32231, that added together give a palindrome (54545).

The spelling of 2231432231 in words is "two billion, two hundred thirty-one million, four hundred thirty-two thousand, two hundred thirty-one".