11203230461 has 4 divisors (see below), whose sum is σ = 11564625024. Its totient is φ = 10841835900.

The previous prime is 11203230431. The next prime is 11203230463. The reversal of 11203230461 is 16403230211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11203230461 - 2³⁰ = 10129488637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203230463) 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, 180697235 + ... + 180697296.

It is an arithmetic number, because the mean of its divisors is an integer number (2891156256).

Almost surely, 2^11203230461 is an apocalyptic number.

It is an amenable number.

11203230461 is a deficient number, since it is larger than the sum of its proper divisors (361394563).

11203230461 is an equidigital number, since it uses as much as digits as its factorization.

11203230461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361394562.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 11203230461 its reverse (16403230211), we get a palindrome (27606460672).

The spelling of 11203230461 in words is "eleven billion, two hundred three million, two hundred thirty thousand, four hundred sixty-one".