420303342542 has 8 divisors (see below), whose sum is σ = 630474419496. Its totient is φ = 210145202712.

The previous prime is 420303342497. The next prime is 420303342607. The reversal of 420303342542 is 245243303024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 420303342499 and 420303342508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3152648 + ... + 3283259.

It is an arithmetic number, because the mean of its divisors is an integer number (78809302437).

Almost surely, 2^420303342542 is an apocalyptic number.

420303342542 is a deficient number, since it is larger than the sum of its proper divisors (210171076954).

420303342542 is a wasteful number, since it uses less digits than its factorization.

420303342542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6468562.

The product of its (nonzero) digits is 69120, while the sum is 32.

Adding to 420303342542 its reverse (245243303024), we get a palindrome (665546645566).

The spelling of 420303342542 in words is "four hundred twenty billion, three hundred three million, three hundred forty-two thousand, five hundred forty-two".