1021312003200 has 96 divisors (see below), whose sum is σ = 3363946442160. Its totient is φ = 272349864960.

The previous prime is 1021312003183. The next prime is 1021312003247. The reversal of 1021312003200 is 23002131201.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1021312003200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53183734 + ... + 53202933.

Almost surely, 2^{1021312003200} is an apocalyptic number.

1021312003200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021312003200 is an abundant number, since it is smaller than the sum of its proper divisors (2342634438960).

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

1021312003200 is a wasteful number, since it uses less digits than its factorization.

1021312003200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106386694 (or 106386677 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1021312003200 its reverse (23002131201), we get a palindrome (1044314134401).

The spelling of 1021312003200 in words is "one trillion, twenty-one billion, three hundred twelve million, three thousand, two hundred".