420306351142 has 4 divisors (see below), whose sum is σ = 630459526716. Its totient is φ = 210153175570.

The previous prime is 420306351139. The next prime is 420306351149. The reversal of 420306351142 is 241153603024.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420306351149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105076587784 + ... + 105076587787.

It is an arithmetic number, because the mean of its divisors is an integer number (157614881679).

Almost surely, 2^420306351142 is an apocalyptic number.

420306351142 is a deficient number, since it is larger than the sum of its proper divisors (210153175574).

420306351142 is a wasteful number, since it uses less digits than its factorization.

420306351142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210153175573.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 420306351142 its reverse (241153603024), we get a palindrome (661459954166).

The spelling of 420306351142 in words is "four hundred twenty billion, three hundred six million, three hundred fifty-one thousand, one hundred forty-two".