1023204043403 has 4 divisors (see below), whose sum is σ = 1033334776608. Its totient is φ = 1013073310200.

The previous prime is 1023204043387. The next prime is 1023204043487. The reversal of 1023204043403 is 3043404023201.

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 1023204043403 - 2⁴ = 1023204043387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023204843403) 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, 5065366451 + ... + 5065366652.

It is an arithmetic number, because the mean of its divisors is an integer number (258333694152).

Almost surely, 2^{1023204043403} is an apocalyptic number.

1023204043403 is a deficient number, since it is larger than the sum of its proper divisors (10130733205).

1023204043403 is a wasteful number, since it uses less digits than its factorization.

1023204043403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10130733204.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 1023204043403 its reverse (3043404023201), we get a palindrome (4066608066604).

The spelling of 1023204043403 in words is "one trillion, twenty-three billion, two hundred four million, forty-three thousand, four hundred three".