223431002 has 4 divisors (see below), whose sum is σ = 335146506. Its totient is φ = 111715500.

The previous prime is 223431001. The next prime is 223431011. The reversal of 223431002 is 200134322.

223431002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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., 177449041 + 45981961 = 13321^2 + 6781^2 .

It is not an unprimeable number, because it can be changed into a prime (223431001) 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 as a sum of consecutive naturals, namely, 55857749 + ... + 55857752.

Almost surely, 2^223431002 is an apocalyptic number.

223431002 is a deficient number, since it is larger than the sum of its proper divisors (111715504).

223431002 is a wasteful number, since it uses less digits than its factorization.

223431002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111715503.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 223431002 is about 14947.6085712732. The cubic root of 223431002 is about 606.8031282741.

Adding to 223431002 its reverse (200134322), we get a palindrome (423565324).

The spelling of 223431002 in words is "two hundred twenty-three million, four hundred thirty-one thousand, two".