223020401 has 4 divisors (see below), whose sum is σ = 223052400. Its totient is φ = 222988404.

The previous prime is 223020367. The next prime is 223020407. The reversal of 223020401 is 104020322.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 223020401 - 2⁶ = 223020337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223020407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 611 + ... + 21128.

It is an arithmetic number, because the mean of its divisors is an integer number (55763100).

Almost surely, 2^223020401 is an apocalyptic number.

It is an amenable number.

223020401 is a deficient number, since it is larger than the sum of its proper divisors (31999).

223020401 is a wasteful number, since it uses less digits than its factorization.

223020401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31998.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 223020401 is about 14933.8675834494. The cubic root of 223020401 is about 606.4311913016.

Adding to 223020401 its reverse (104020322), we get a palindrome (327040723).

The spelling of 223020401 in words is "two hundred twenty-three million, twenty thousand, four hundred one".