1021130200 has 48 divisors (see below), whose sum is σ = 2397681360. Its totient is φ = 404400000.

The previous prime is 1021130161. The next prime is 1021130207. The reversal of 1021130200 is 20311201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021130207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5076 + ... + 45475.

It is an arithmetic number, because the mean of its divisors is an integer number (49951695).

Almost surely, 2^1021130200 is an apocalyptic number.

1021130200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021130200 is an abundant number, since it is smaller than the sum of its proper divisors (1376551160).

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

1021130200 is a wasteful number, since it uses less digits than its factorization.

1021130200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50668 (or 50659 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1021130200 is about 31955.1279139984. The cubic root of 1021130200 is about 1006.9943648036.

Adding to 1021130200 its reverse (20311201), we get a palindrome (1041441401).

The spelling of 1021130200 in words is "one billion, twenty-one million, one hundred thirty thousand, two hundred".