1130221300 has 54 divisors (see below), whose sum is σ = 2655792258. Its totient is φ = 417306240.

The previous prime is 1130221297. The next prime is 1130221303. The reversal of 1130221300 is 31220311.

It is an interprime number because it is at equal distance from previous prime (1130221297) and next prime (1130221303).

It can be written as a sum of positive squares in 9 ways, for example, as 1021185936 + 109035364 = 31956^2 + 10442^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130221303) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16539 + ... + 50338.

Almost surely, 2^1130221300 is an apocalyptic number.

1130221300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1130221300 is an abundant number, since it is smaller than the sum of its proper divisors (1525570958).

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

1130221300 is a wasteful number, since it uses less digits than its factorization.

1130221300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66917 (or 66897 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1130221300 is about 33618.7641057788. The cubic root of 1130221300 is about 1041.6484274851.

Adding to 1130221300 its reverse (31220311), we get a palindrome (1161441611).

The spelling of 1130221300 in words is "one billion, one hundred thirty million, two hundred twenty-one thousand, three hundred".