1331200553200 has 120 divisors (see below), whose sum is σ = 3740098955648. Its totient is φ = 445797354240.

The previous prime is 1331200553167. The next prime is 1331200553201. The reversal of 1331200553200 is 23550021331.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331200553201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5407842 + ... + 5648641.

Almost surely, 2^{1331200553200} is an apocalyptic number.

1331200553200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331200553200 is an abundant number, since it is smaller than the sum of its proper divisors (2408898402448).

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

1331200553200 is a wasteful number, since it uses less digits than its factorization.

1331200553200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11056551 (or 11056540 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 1331200553200 its reverse (23550021331), we get a palindrome (1354750574531).

The spelling of 1331200553200 in words is "one trillion, three hundred thirty-one billion, two hundred million, five hundred fifty-three thousand, two hundred".