1031203221200 has 30 divisors (see below), whose sum is σ = 2477465739894. Its totient is φ = 412481288320.

The previous prime is 1031203221197. The next prime is 1031203221253. The reversal of 1031203221200 is 21223021301.

It can be written as a sum of positive squares in 3 ways, for example, as 19666135696 + 1011537085504 = 140236^2 + 1005752^2 .

It is a super-2 number, since 2×1031203221200² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1289003627 + ... + 1289004426.

Almost surely, 2^{1031203221200} is an apocalyptic number.

1031203221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031203221200 is an abundant number, since it is smaller than the sum of its proper divisors (1446262518694).

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

1031203221200 is a wasteful number, since it uses less digits than its factorization.

1031203221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2578008071 (or 2578008060 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1031203221200 its reverse (21223021301), we get a palindrome (1052426242501).

The spelling of 1031203221200 in words is "one trillion, thirty-one billion, two hundred three million, two hundred twenty-one thousand, two hundred".