1131231232000 has 240 divisors, whose sum is σ = 2831936994432. Its totient is φ = 451136716800.

The previous prime is 1131231231989. The next prime is 1131231232003. The reversal of 1131231232000 is 2321321311.

It is not an unprimeable number, because it can be changed into a prime (1131231232003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 948223404 + ... + 948224596.

Almost surely, 2^{1131231232000} is an apocalyptic number.

1131231232000 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 1131231232000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1415968497216).

1131231232000 is an abundant number, since it is smaller than the sum of its proper divisors (1700705762432).

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

1131231232000 is an frugal number, since it uses more digits than its factorization.

1131231232000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699 (or 1663 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1131231232000 its reverse (2321321311), we get a palindrome (1133552553311).

The spelling of 1131231232000 in words is "one trillion, one hundred thirty-one billion, two hundred thirty-one million, two hundred thirty-two thousand".