1012003011200 has 48 divisors (see below), whose sum is σ = 2499963696510. Its totient is φ = 404801203200.

The previous prime is 1012003011191. The next prime is 1012003011233. The reversal of 1012003011200 is 21103002101.

It can be written as a sum of positive squares in 3 ways, for example, as 728783201344 + 283219809856 = 853688^2 + 532184^2 .

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, 158122271 + ... + 158128670.

Almost surely, 2^{1012003011200} is an apocalyptic number.

1012003011200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012003011200 is an abundant number, since it is smaller than the sum of its proper divisors (1487960685310).

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

1012003011200 is an equidigital number, since it uses as much as digits as its factorization.

1012003011200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316250965 (or 316250948 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 1012003011200 its reverse (21103002101), we get a palindrome (1033106013301).

Subtracting from 1012003011200 its reverse (21103002101), we obtain a palindrome (990900009099).

The spelling of 1012003011200 in words is "one trillion, twelve billion, three million, eleven thousand, two hundred".