1331356729200 has 480 divisors, whose sum is σ = 4601581670400. Its totient is φ = 327953525760.

The previous prime is 1331356729187. The next prime is 1331356729267. The reversal of 1331356729200 is 29276531331.

It is a super-2 number, since 2×1331356729200² (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 95 ways as a sum of consecutive naturals, for example, 1018634947 + ... + 1018636253.

It is an arithmetic number, because the mean of its divisors is an integer number (9586628480).

Almost surely, 2^{1331356729200} is an apocalyptic number.

1331356729200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1331356729200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2300790835200).

1331356729200 is an abundant number, since it is smaller than the sum of its proper divisors (3270224941200).

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

1331356729200 is a wasteful number, since it uses less digits than its factorization.

1331356729200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429 (or 2418 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 42.

The spelling of 1331356729200 in words is "one trillion, three hundred thirty-one billion, three hundred fifty-six million, seven hundred twenty-nine thousand, two hundred".