423021351 has 8 divisors (see below), whose sum is σ = 564141424. Its totient is φ = 281957760.

The previous prime is 423021329. The next prime is 423021371. The reversal of 423021351 is 153120324.

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

It is a de Polignac number, because none of the positive numbers 2^k-423021351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423021371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8565 + ... + 30321.

It is an arithmetic number, because the mean of its divisors is an integer number (70517678).

Almost surely, 2^423021351 is an apocalyptic number.

423021351 is a deficient number, since it is larger than the sum of its proper divisors (141120073).

423021351 is a wasteful number, since it uses less digits than its factorization.

423021351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28241.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 423021351 is about 20567.4828552256. The cubic root of 423021351 is about 750.6787047390.

Adding to 423021351 its reverse (153120324), we get a palindrome (576141675).

The spelling of 423021351 in words is "four hundred twenty-three million, twenty-one thousand, three hundred fifty-one".