1420042333543 has 4 divisors (see below), whose sum is σ = 1426410236608. Its totient is φ = 1413674430480.

The previous prime is 1420042333517. The next prime is 1420042333559. The reversal of 1420042333543 is 3453332400241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420042333543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1420042333499 and 1420042333508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420042393543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3183951198 + ... + 3183951643.

It is an arithmetic number, because the mean of its divisors is an integer number (356602559152).

Almost surely, 2^{1420042333543} is an apocalyptic number.

1420042333543 is a deficient number, since it is larger than the sum of its proper divisors (6367903065).

1420042333543 is an equidigital number, since it uses as much as digits as its factorization.

1420042333543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6367903064.

The product of its (nonzero) digits is 103680, while the sum is 34.

Adding to 1420042333543 its reverse (3453332400241), we get a palindrome (4873374733784).

The spelling of 1420042333543 in words is "one trillion, four hundred twenty billion, forty-two million, three hundred thirty-three thousand, five hundred forty-three".