1131321120000 has 180 divisors, whose sum is σ = 3762502238880. Its totient is φ = 301685504000.

The previous prime is 1131321119993. The next prime is 1131321120037. The reversal of 1131321120000 is 211231311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 698460 + ... + 1658459.

It is an arithmetic number, because the mean of its divisors is an integer number (20902790216).

Almost surely, 2^{1131321120000} is an apocalyptic number.

1131321120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131321120000 is an abundant number, since it is smaller than the sum of its proper divisors (2631181118880).

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

1131321120000 is an frugal number, since it uses more digits than its factorization.

1131321120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356958 (or 2356929 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1131321120000 its reverse (211231311), we get a palindrome (1131532351311).

The spelling of 1131321120000 in words is "one trillion, one hundred thirty-one billion, three hundred twenty-one million, one hundred twenty thousand".