11243203045 has 32 divisors (see below), whose sum is σ = 14933030400. Its totient is φ = 8083046400.

The previous prime is 11243203019. The next prime is 11243203063. The reversal of 11243203045 is 54030234211.

It is not a de Polignac number, because 11243203045 - 2⁷ = 11243202917 is a prime.

It is a super-2 number, since 2×11243203045² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1166245 + ... + 1175845.

It is an arithmetic number, because the mean of its divisors is an integer number (466657200).

Almost surely, 2^11243203045 is an apocalyptic number.

It is an amenable number.

11243203045 is a deficient number, since it is larger than the sum of its proper divisors (3689827355).

11243203045 is a wasteful number, since it uses less digits than its factorization.

11243203045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10245.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 11243203045 its reverse (54030234211), we get a palindrome (65273437256).

The spelling of 11243203045 in words is "eleven billion, two hundred forty-three million, two hundred three thousand, forty-five".