11430203043 has 16 divisors (see below), whose sum is σ = 17544591360. Its totient is φ = 6483867456.

The previous prime is 11430203021. The next prime is 11430203063. The reversal of 11430203043 is 34030203411.

It is not a de Polignac number, because 11430203043 - 2¹⁰ = 11430202019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (11430203003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1983603 + ... + 1989356.

It is an arithmetic number, because the mean of its divisors is an integer number (1096536960).

Almost surely, 2^11430203043 is an apocalyptic number.

11430203043 is a deficient number, since it is larger than the sum of its proper divisors (6114388317).

11430203043 is a wasteful number, since it uses less digits than its factorization.

11430203043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3973106.

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

Adding to 11430203043 its reverse (34030203411), we get a palindrome (45460406454).

The spelling of 11430203043 in words is "eleven billion, four hundred thirty million, two hundred three thousand, forty-three".