1420320240143 has 16 divisors (see below), whose sum is σ = 1670717352960. Its totient is φ = 1182301941600.

The previous prime is 1420320240127. The next prime is 1420320240149. The reversal of 1420320240143 is 3410420230241.

It is a cyclic number.

It is not a de Polignac number, because 1420320240143 - 2⁴ = 1420320240127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420320240149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21018653 + ... + 21086118.

It is an arithmetic number, because the mean of its divisors is an integer number (104419834560).

Almost surely, 2^{1420320240143} is an apocalyptic number.

1420320240143 is a deficient number, since it is larger than the sum of its proper divisors (250397112817).

1420320240143 is an equidigital number, since it uses as much as digits as its factorization.

1420320240143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42104918.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1420320240143 its reverse (3410420230241), we get a palindrome (4830740470384).

The spelling of 1420320240143 in words is "one trillion, four hundred twenty billion, three hundred twenty million, two hundred forty thousand, one hundred forty-three".