1131130452 has 48 divisors (see below), whose sum is σ = 2713072320. Its totient is φ = 366632448.

The previous prime is 1131130393. The next prime is 1131130487. The reversal of 1131130452 is 2540311311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63999 + ... + 79737.

It is an arithmetic number, because the mean of its divisors is an integer number (56522340).

Almost surely, 2^1131130452 is an apocalyptic number.

1131130452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131130452 is an abundant number, since it is smaller than the sum of its proper divisors (1581941868).

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

1131130452 is a wasteful number, since it uses less digits than its factorization.

1131130452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15912 (or 15910 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1131130452 is about 33632.2828841576. The cubic root of 1131130452 is about 1041.9276539036.

Adding to 1131130452 its reverse (2540311311), we get a palindrome (3671441763).

The spelling of 1131130452 in words is "one billion, one hundred thirty-one million, one hundred thirty thousand, four hundred fifty-two".