11203204131 has 36 divisors (see below), whose sum is σ = 18894610800. Its totient is φ = 6377964768.

The previous prime is 11203204127. The next prime is 11203204139. The reversal of 11203204131 is 13140230211.

It is not a de Polignac number, because 11203204131 - 2² = 11203204127 is a prime.

It is a super-2 number, since 2×11203204131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11203204139) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 71410 + ... + 165848.

It is an arithmetic number, because the mean of its divisors is an integer number (524850300).

Almost surely, 2^11203204131 is an apocalyptic number.

11203204131 is a deficient number, since it is larger than the sum of its proper divisors (7691406669).

11203204131 is a wasteful number, since it uses less digits than its factorization.

11203204131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94728 (or 94718 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11203204131 its reverse (13140230211), we get a palindrome (24343434342).

The spelling of 11203204131 in words is "eleven billion, two hundred three million, two hundred four thousand, one hundred thirty-one".