1420432402143 has 4 divisors (see below), whose sum is σ = 1893909869528. Its totient is φ = 946954934760.

The previous prime is 1420432402097. The next prime is 1420432402163. The reversal of 1420432402143 is 3412042340241.

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

It is not a de Polignac number, because 1420432402143 - 2⁶ = 1420432402079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1420432402143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420432402163) 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, 236738733688 + ... + 236738733693.

It is an arithmetic number, because the mean of its divisors is an integer number (473477467382).

Almost surely, 2^{1420432402143} is an apocalyptic number.

1420432402143 is a deficient number, since it is larger than the sum of its proper divisors (473477467385).

1420432402143 is an equidigital number, since it uses as much as digits as its factorization.

1420432402143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473477467384.

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

Adding to 1420432402143 its reverse (3412042340241), we get a palindrome (4832474742384).

The spelling of 1420432402143 in words is "one trillion, four hundred twenty billion, four hundred thirty-two million, four hundred two thousand, one hundred forty-three".