11203234131 has 4 divisors (see below), whose sum is σ = 14937645512. Its totient is φ = 7468822752.

The previous prime is 11203234127. The next prime is 11203234139. The reversal of 11203234131 is 13143230211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13143230211 = 3 ⋅4381076737.

It is not a de Polignac number, because 11203234131 - 2² = 11203234127 is a prime.

It is a super-2 number, since 2×11203234131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11203234098 and 11203234107.

It is not an unprimeable number, because it can be changed into a prime (11203234139) 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, 1867205686 + ... + 1867205691.

It is an arithmetic number, because the mean of its divisors is an integer number (3734411378).

Almost surely, 2^11203234131 is an apocalyptic number.

11203234131 is a deficient number, since it is larger than the sum of its proper divisors (3734411381).

11203234131 is an equidigital number, since it uses as much as digits as its factorization.

11203234131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3734411380.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11203234131 its reverse (13143230211), we get a palindrome (24346464342).

The spelling of 11203234131 in words is "eleven billion, two hundred three million, two hundred thirty-four thousand, one hundred thirty-one".