1231032000 has 224 divisors, whose sum is σ = 4435352064. Its totient is φ = 298368000.

The previous prime is 1231031987. The next prime is 1231032017. The reversal of 1231032000 is 2301321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261669 + ... + 266331.

Almost surely, 2^1231032000 is an apocalyptic number.

1231032000 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 1231032000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2217676032).

1231032000 is an abundant number, since it is smaller than the sum of its proper divisors (3204320064).

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

1231032000 is a wasteful number, since it uses less digits than its factorization.

1231032000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4704 (or 4684 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1231032000 is about 35086.0656101536. The cubic root of 1231032000 is about 1071.7408410432.

Adding to 1231032000 its reverse (2301321), we get a palindrome (1233333321).

The spelling of 1231032000 in words is "one billion, two hundred thirty-one million, thirty-two thousand".