142421420543603 has 16 divisors (see below), whose sum is σ = 153801921598080. Its totient is φ = 131473920412224.

The previous prime is 142421420543543. The next prime is 142421420543617. The reversal of 142421420543603 is 306345024124241.

It is not a de Polignac number, because 142421420543603 - 2¹⁴ = 142421420527219 is a prime.

It is a super-2 number, since 2×142421420543603² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142421420543683) 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, 618457601 + ... + 618687842.

It is an arithmetic number, because the mean of its divisors is an integer number (9612620099880).

Almost surely, 2^{142421420543603} is an apocalyptic number.

142421420543603 is a deficient number, since it is larger than the sum of its proper divisors (11380501054477).

142421420543603 is a wasteful number, since it uses less digits than its factorization.

142421420543603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237145618.

The product of its (nonzero) digits is 552960, while the sum is 41.

Adding to 142421420543603 its reverse (306345024124241), we get a palindrome (448766444667844).

It can be divided in two parts, 142421 and 420543603, that added together give a palindrome (420686024).

The spelling of 142421420543603 in words is "one hundred forty-two trillion, four hundred twenty-one billion, four hundred twenty million, five hundred forty-three thousand, six hundred three".