423142201 has 4 divisors (see below), whose sum is σ = 441539712. Its totient is φ = 404744692.

The previous prime is 423142193. The next prime is 423142229. The reversal of 423142201 is 102241324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 423142201 - 2³ = 423142193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423142001) 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, 9198721 + ... + 9198766.

It is an arithmetic number, because the mean of its divisors is an integer number (110384928).

Almost surely, 2^423142201 is an apocalyptic number.

It is an amenable number.

423142201 is a deficient number, since it is larger than the sum of its proper divisors (18397511).

423142201 is a wasteful number, since it uses less digits than its factorization.

423142201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18397510.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 423142201 is about 20570.4205353221. The cubic root of 423142201 is about 750.7501833091.

Adding to 423142201 its reverse (102241324), we get a palindrome (525383525).

The spelling of 423142201 in words is "four hundred twenty-three million, one hundred forty-two thousand, two hundred one".