1043212231 has 4 divisors (see below), whose sum is σ = 1044389232. Its totient is φ = 1042035232.

The previous prime is 1043212223. The next prime is 1043212249. The reversal of 1043212231 is 1322123401.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1043212231 - 2³ = 1043212223 is a prime.

It is a super-2 number, since 2×1043212231² = 2176583517815994722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1043212199 and 1043212208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043212201) 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, 587170 + ... + 588943.

It is an arithmetic number, because the mean of its divisors is an integer number (261097308).

Almost surely, 2^1043212231 is an apocalyptic number.

1043212231 is a deficient number, since it is larger than the sum of its proper divisors (1177001).

1043212231 is an equidigital number, since it uses as much as digits as its factorization.

1043212231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177000.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1043212231 is about 32298.7961230755. The cubic root of 1043212231 is about 1014.2014413438.

Adding to 1043212231 its reverse (1322123401), we get a palindrome (2365335632).

The spelling of 1043212231 in words is "one billion, forty-three million, two hundred twelve thousand, two hundred thirty-one".