1231033043 has 2 divisors, whose sum is σ = 1231033044. Its totient is φ = 1231033042.

The previous prime is 1231033007. The next prime is 1231033051. The reversal of 1231033043 is 3403301321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1231033043 - 2⁸ = 1231032787 is a prime.

It is not a weakly prime, because it can be changed into another prime (1231033073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615516521 + 615516522.

It is an arithmetic number, because the mean of its divisors is an integer number (615516522).

Almost surely, 2^1231033043 is an apocalyptic number.

1231033043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231033043 is an equidigital number, since it uses as much as digits as its factorization.

1231033043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1231033043 is about 35086.0804736009. The cubic root of 1231033043 is about 1071.7411437229.

Adding to 1231033043 its reverse (3403301321), we get a palindrome (4634334364).

The spelling of 1231033043 in words is "one billion, two hundred thirty-one million, thirty-three thousand, forty-three".