1043231403 has 4 divisors (see below), whose sum is σ = 1390975208. Its totient is φ = 695487600.

The previous prime is 1043231381. The next prime is 1043231407. The reversal of 1043231403 is 3041323401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3041323401 = 3 ⋅1013774467.

It is not a de Polignac number, because 1043231403 - 2¹⁸ = 1042969259 is a prime.

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 1043231403.

It is not an unprimeable number, because it can be changed into a prime (1043231407) 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, 173871898 + ... + 173871903.

It is an arithmetic number, because the mean of its divisors is an integer number (347743802).

Almost surely, 2^1043231403 is an apocalyptic number.

1043231403 is a deficient number, since it is larger than the sum of its proper divisors (347743805).

1043231403 is an equidigital number, since it uses as much as digits as its factorization.

1043231403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347743804.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1043231403 is about 32299.0929129596. The cubic root of 1043231403 is about 1014.2076542537.

Adding to 1043231403 its reverse (3041323401), we get a palindrome (4084554804).

The spelling of 1043231403 in words is "one billion, forty-three million, two hundred thirty-one thousand, four hundred three".