423014020042 has 4 divisors (see below), whose sum is σ = 634521030066. Its totient is φ = 211507010020.

The previous prime is 423014019983. The next prime is 423014020057. The reversal of 423014020042 is 240020410324.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 417624845121 + 5389174921 = 646239^2 + 73411^2 .

It is a super-2 number, since 2×423014020042² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 423014019995 and 423014020022.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105753505009 + ... + 105753505012.

Almost surely, 2^423014020042 is an apocalyptic number.

423014020042 is a deficient number, since it is larger than the sum of its proper divisors (211507010024).

423014020042 is a wasteful number, since it uses less digits than its factorization.

423014020042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211507010023.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 423014020042 its reverse (240020410324), we get a palindrome (663034430366).

The spelling of 423014020042 in words is "four hundred twenty-three billion, fourteen million, twenty thousand, forty-two".