2231223431 has 12 divisors (see below), whose sum is σ = 2363145480. Its totient is φ = 2104134480.

The previous prime is 2231223383. The next prime is 2231223437. The reversal of 2231223431 is 1343221322.

2231223431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2231223431 - 2⁶ = 2231223367 is a prime.

It is a super-3 number, since 3×2231223431³ (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 = 2231223397 and 2231223406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231223437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32816 + ... + 74426.

It is an arithmetic number, because the mean of its divisors is an integer number (196928790).

Almost surely, 2^2231223431 is an apocalyptic number.

2231223431 is a deficient number, since it is larger than the sum of its proper divisors (131922049).

2231223431 is an equidigital number, since it uses as much as digits as its factorization.

2231223431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41726 (or 41683 counting only the distinct ones).

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

The square root of 2231223431 is about 47235.8278322716. The cubic root of 2231223431 is about 1306.7154338563.

Adding to 2231223431 its reverse (1343221322), we get a palindrome (3574444753).

The spelling of 2231223431 in words is "two billion, two hundred thirty-one million, two hundred twenty-three thousand, four hundred thirty-one".