1130121232 has 20 divisors (see below), whose sum is σ = 2200730796. Its totient is φ = 562190720.

The previous prime is 1130121203. The next prime is 1130121233. The reversal of 1130121232 is 2321210311.

It can be written as a sum of positive squares in 2 ways, for example, as 616826896 + 513294336 = 24836^2 + 22656^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1130121233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176119 + ... + 182422.

Almost surely, 2^1130121232 is an apocalyptic number.

It is an amenable number.

1130121232 is a deficient number, since it is larger than the sum of its proper divisors (1070609564).

1130121232 is a wasteful number, since it uses less digits than its factorization.

1130121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358746 (or 358740 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1130121232 is about 33617.2757968280. The cubic root of 1130121232 is about 1041.6176846116.

Adding to 1130121232 its reverse (2321210311), we get a palindrome (3451331543).

It can be divided in two parts, 113012 and 1232, that added together give a square (114244 = 338²).

The spelling of 1130121232 in words is "one billion, one hundred thirty million, one hundred twenty-one thousand, two hundred thirty-two".