1021324040200 has 24 divisors (see below), whose sum is σ = 2374578393930. Its totient is φ = 408529616000.

The previous prime is 1021324040183. The next prime is 1021324040201. The reversal of 1021324040200 is 20404231201.

It can be written as a sum of positive squares in 3 ways, for example, as 962412012676 + 58912027524 = 981026^2 + 242718^2 .

It is not an unprimeable number, because it can be changed into a prime (1021324040201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2553309901 + ... + 2553310300.

Almost surely, 2^{1021324040200} is an apocalyptic number.

1021324040200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021324040200 is an abundant number, since it is smaller than the sum of its proper divisors (1353254353730).

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

1021324040200 is a wasteful number, since it uses less digits than its factorization.

1021324040200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5106620217 (or 5106620208 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 1021324040200 its reverse (20404231201), we get a palindrome (1041728271401).

The spelling of 1021324040200 in words is "one trillion, twenty-one billion, three hundred twenty-four million, forty thousand, two hundred".