1131223134 has 16 divisors (see below), whose sum is σ = 2263132800. Its totient is φ = 376959960.

The previous prime is 1131223133. The next prime is 1131223141. The reversal of 1131223134 is 4313221311.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1131223134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131223133) 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, 5784 + ... + 47915.

It is an arithmetic number, because the mean of its divisors is an integer number (141445800).

Almost surely, 2^1131223134 is an apocalyptic number.

1131223134 is an abundant number, since it is smaller than the sum of its proper divisors (1131909666).

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

1131223134 is a wasteful number, since it uses less digits than its factorization.

1131223134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57215.

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

The square root of 1131223134 is about 33633.6607285023. The cubic root of 1131223134 is about 1041.9561107750.

Adding to 1131223134 its reverse (4313221311), we get a palindrome (5444444445).

The spelling of 1131223134 in words is "one billion, one hundred thirty-one million, two hundred twenty-three thousand, one hundred thirty-four".