1231883520000 has 720 divisors, whose sum is σ = 4774726036080. Its totient is φ = 281530368000.

The previous prime is 1231883519969. The next prime is 1231883520029. The reversal of 1231883520000 is 253881321.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 188156727 + ... + 188163273.

It is an arithmetic number, because the mean of its divisors is an integer number (6631563939).

Almost surely, 2^{1231883520000} is an apocalyptic number.

1231883520000 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 1231883520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2387363018040).

1231883520000 is an abundant number, since it is smaller than the sum of its proper divisors (3542842516080).

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

1231883520000 is an frugal number, since it uses more digits than its factorization.

1231883520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6606 (or 6564 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 1231883520000 in words is "one trillion, two hundred thirty-one billion, eight hundred eighty-three million, five hundred twenty thousand".