1013131221200 has 60 divisors (see below), whose sum is σ = 2781768875040. Its totient is φ = 347359274880.

The previous prime is 1013131221187. The next prime is 1013131221209. The reversal of 1013131221200 is 21221313101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013131221209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180913490 + ... + 180919089.

It is an arithmetic number, because the mean of its divisors is an integer number (46362814584).

Almost surely, 2^{1013131221200} is an apocalyptic number.

1013131221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013131221200 is an abundant number, since it is smaller than the sum of its proper divisors (1768637653840).

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

1013131221200 is a wasteful number, since it uses less digits than its factorization.

1013131221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361832604 (or 361832593 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1013131221200 its reverse (21221313101), we get a palindrome (1034352534301).

The spelling of 1013131221200 in words is "one trillion, thirteen billion, one hundred thirty-one million, two hundred twenty-one thousand, two hundred".