201423000 has 64 divisors (see below), whose sum is σ = 628449120. Its totient is φ = 53712000.

The previous prime is 201422981. The next prime is 201423023. The reversal of 201423000 is 324102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30571 + ... + 36570.

Almost surely, 2^201423000 is an apocalyptic number.

201423000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201423000 is an abundant number, since it is smaller than the sum of its proper divisors (427026120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201423000 is a wasteful number, since it uses less digits than its factorization.

201423000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67165 (or 67151 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 201423000 is about 14192.3570981004. The cubic root of 201423000 is about 586.1872302594.

Adding to 201423000 its reverse (324102), we get a palindrome (201747102).

The spelling of 201423000 in words is "two hundred one million, four hundred twenty-three thousand".