11203230423 has 32 divisors (see below), whose sum is σ = 18629309952. Its totient is φ = 5818060800.

The previous prime is 11203230419. The next prime is 11203230431. The reversal of 11203230423 is 32403230211.

It is not a de Polignac number, because 11203230423 - 2² = 11203230419 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11203230423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203230413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1085415 + ... + 1095687.

It is an arithmetic number, because the mean of its divisors is an integer number (582165936).

Almost surely, 2^11203230423 is an apocalyptic number.

11203230423 is a deficient number, since it is larger than the sum of its proper divisors (7426079529).

11203230423 is a wasteful number, since it uses less digits than its factorization.

11203230423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15015.

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

Adding to 11203230423 its reverse (32403230211), we get a palindrome (43606460634).

The spelling of 11203230423 in words is "eleven billion, two hundred three million, two hundred thirty thousand, four hundred twenty-three".