1431444340020 has 96 divisors (see below), whose sum is σ = 4048520216832. Its totient is φ = 377882579968.

The previous prime is 1431444340013. The next prime is 1431444340031. The reversal of 1431444340020 is 200434441341.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 1431444340020.

It is a congruent number.

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, 2122609 + ... + 2714471.

It is an arithmetic number, because the mean of its divisors is an integer number (42172085592).

Almost surely, 2^{1431444340020} is an apocalyptic number.

1431444340020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1431444340020 is an abundant number, since it is smaller than the sum of its proper divisors (2617075876812).

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

1431444340020 is a wasteful number, since it uses less digits than its factorization.

1431444340020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592281 (or 592279 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 1431444340020 its reverse (200434441341), we get a palindrome (1631878781361).

The spelling of 1431444340020 in words is "one trillion, four hundred thirty-one billion, four hundred forty-four million, three hundred forty thousand, twenty".