1021310200 has 48 divisors (see below), whose sum is σ = 2429788680. Its totient is φ = 399020160.

The previous prime is 1021310167. The next prime is 1021310201. The reversal of 1021310200 is 20131201.

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 (1021310201) 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, 50779 + ... + 67978.

Almost surely, 2^1021310200 is an apocalyptic number.

1021310200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021310200 is an abundant number, since it is smaller than the sum of its proper divisors (1408478480).

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

1021310200 is a wasteful number, since it uses less digits than its factorization.

1021310200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118816 (or 118807 counting only the distinct ones).

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

The square root of 1021310200 is about 31957.9442392655. The cubic root of 1021310200 is about 1007.0535307278.

Adding to 1021310200 its reverse (20131201), we get a palindrome (1041441401).

The spelling of 1021310200 in words is "one billion, twenty-one million, three hundred ten thousand, two hundred".