1131130233 has 6 divisors (see below), whose sum is σ = 1633854794. Its totient is φ = 754086816.

The previous prime is 1131130223. The next prime is 1131130237. The reversal of 1131130233 is 3320311311.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1119103209 + 12027024 = 33453^2 + 3468^2 .

It is not a de Polignac number, because 1131130233 - 2⁹ = 1131129721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131130237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62840560 + ... + 62840577.

Almost surely, 2^1131130233 is an apocalyptic number.

It is an amenable number.

1131130233 is a deficient number, since it is larger than the sum of its proper divisors (502724561).

1131130233 is a wasteful number, since it uses less digits than its factorization.

1131130233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125681143 (or 125681140 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1131130233 is about 33632.2796283570. The cubic root of 1131130233 is about 1041.9275866605.

Adding to 1131130233 its reverse (3320311311), we get a palindrome (4451441544).

The spelling of 1131130233 in words is "one billion, one hundred thirty-one million, one hundred thirty thousand, two hundred thirty-three".