1023204043 has 4 divisors (see below), whose sum is σ = 1023539440. Its totient is φ = 1022868648.

The previous prime is 1023204001. The next prime is 1023204097. The reversal of 1023204043 is 3404023201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3404023201 = 191 ⋅17822111.

It is a cyclic number.

It is not a de Polignac number, because 1023204043 - 2²⁹ = 486333131 is a prime.

It is a super-2 number, since 2×1023204043² = 2093893027223091698, which contains 22 as substring.

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 1023204043.

It is not an unprimeable number, because it can be changed into a prime (1023207043) 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, 163080 + ... + 169237.

It is an arithmetic number, because the mean of its divisors is an integer number (255884860).

Almost surely, 2^1023204043 is an apocalyptic number.

1023204043 is a deficient number, since it is larger than the sum of its proper divisors (335397).

1023204043 is an equidigital number, since it uses as much as digits as its factorization.

1023204043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335396.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1023204043 is about 31987.5607541432. The cubic root of 1023204043 is about 1007.6756151949.

Adding to 1023204043 its reverse (3404023201), we get a palindrome (4427227244).

The spelling of 1023204043 in words is "one billion, twenty-three million, two hundred four thousand, forty-three".