1131040326 has 16 divisors (see below), whose sum is σ = 2436087024. Its totient is φ = 348012384.

The previous prime is 1131040321. The next prime is 1131040327. The reversal of 1131040326 is 6230401311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131040321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7250181 + ... + 7250336.

It is an arithmetic number, because the mean of its divisors is an integer number (152255439).

Almost surely, 2^1131040326 is an apocalyptic number.

1131040326 is an abundant number, since it is smaller than the sum of its proper divisors (1305046698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131040326 is a wasteful number, since it uses less digits than its factorization.

1131040326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14500535.

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

The square root of 1131040326 is about 33630.9429841032. The cubic root of 1131040326 is about 1041.8999803299.

Adding to 1131040326 its reverse (6230401311), we get a palindrome (7361441637).

The spelling of 1131040326 in words is "one billion, one hundred thirty-one million, forty thousand, three hundred twenty-six".