11231204134 has 4 divisors (see below), whose sum is σ = 16846806204. Its totient is φ = 5615602066.

The previous prime is 11231204113. The next prime is 11231204137. The reversal of 11231204134 is 43140213211.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×11231204134² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231204137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2807801032 + ... + 2807801035.

It is an arithmetic number, because the mean of its divisors is an integer number (4211701551).

Almost surely, 2^11231204134 is an apocalyptic number.

11231204134 is a deficient number, since it is larger than the sum of its proper divisors (5615602070).

11231204134 is an equidigital number, since it uses as much as digits as its factorization.

11231204134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5615602069.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 11231204134 its reverse (43140213211), we get a palindrome (54371417345).

The spelling of 11231204134 in words is "eleven billion, two hundred thirty-one million, two hundred four thousand, one hundred thirty-four".