1443121340420 has 24 divisors (see below), whose sum is σ = 3031977032448. Its totient is φ = 576977637600.

The previous prime is 1443121340407. The next prime is 1443121340429. The reversal of 1443121340420 is 240431213441.

It is not an unprimeable number, because it can be changed into a prime (1443121340429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16887476 + ... + 16972715.

It is an arithmetic number, because the mean of its divisors is an integer number (126332376352).

Almost surely, 2^{1443121340420} is an apocalyptic number.

1443121340420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1443121340420 is an abundant number, since it is smaller than the sum of its proper divisors (1588855692028).

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

1443121340420 is a wasteful number, since it uses less digits than its factorization.

1443121340420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33862331 (or 33862329 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1443121340420 its reverse (240431213441), we get a palindrome (1683552553861).

The spelling of 1443121340420 in words is "one trillion, four hundred forty-three billion, one hundred twenty-one million, three hundred forty thousand, four hundred twenty".