1431320000 has 140 divisors (see below), whose sum is σ = 3873053976. Its totient is φ = 520320000.

The previous prime is 1431319997. The next prime is 1431320021. The reversal of 1431320000 is 231341.

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, 438374 + ... + 441626.

Almost surely, 2^1431320000 is an apocalyptic number.

1431320000 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 1431320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1936526988).

1431320000 is an abundant number, since it is smaller than the sum of its proper divisors (2441733976).

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

1431320000 is an equidigital number, since it uses as much as digits as its factorization.

1431320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3296 (or 3271 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1431320000 is about 37832.7900107830. The cubic root of 1431320000 is about 1126.9697180102.

Adding to 1431320000 its reverse (231341), we get a palindrome (1431551341).

The spelling of 1431320000 in words is "one billion, four hundred thirty-one million, three hundred twenty thousand".