1130025220 has 12 divisors (see below), whose sum is σ = 2373053004. Its totient is φ = 452010080.

The previous prime is 1130025203. The next prime is 1130025227. The reversal of 1130025220 is 225200311.

It can be written as a sum of positive squares in 2 ways, for example, as 448084224 + 681940996 = 21168^2 + 26114^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1130025194 and 1130025203.

It is not an unprimeable number, because it can be changed into a prime (1130025227) 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, 28250611 + ... + 28250650.

It is an arithmetic number, because the mean of its divisors is an integer number (197754417).

Almost surely, 2^1130025220 is an apocalyptic number.

1130025220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1130025220 is an abundant number, since it is smaller than the sum of its proper divisors (1243027784).

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

1130025220 is a wasteful number, since it uses less digits than its factorization.

1130025220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56501270 (or 56501268 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1130025220 is about 33615.8477507261. The cubic root of 1130025220 is about 1041.5881861158.

Adding to 1130025220 its reverse (225200311), we get a palindrome (1355225531).

The spelling of 1130025220 in words is "one billion, one hundred thirty million, twenty-five thousand, two hundred twenty".