1431021440000 has 110 divisors (see below), whose sum is σ = 3574664088204. Its totient is φ = 572408320000.

The previous prime is 1431021439987. The next prime is 1431021440003. The reversal of 1431021440000 is 441201341.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1431021440003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 477986 + ... + 1757985.

Almost surely, 2^{1431021440000} is an apocalyptic number.

1431021440000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1431021440000 is an abundant number, since it is smaller than the sum of its proper divisors (2143642648204).

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

1431021440000 is an frugal number, since it uses more digits than its factorization.

1431021440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236011 (or 2235978 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1431021440000 its reverse (441201341), we get a palindrome (1431462641341).

The spelling of 1431021440000 in words is "one trillion, four hundred thirty-one billion, twenty-one million, four hundred forty thousand".