223031120402 has 4 divisors (see below), whose sum is σ = 334546680606. Its totient is φ = 111515560200.

The previous prime is 223031120383. The next prime is 223031120443. The reversal of 223031120402 is 204021130322.

223031120402 is digitally balanced in base 2, 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., 150108978721 + 72922141681 = 387439^2 + 270041^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55757780099 + ... + 55757780102.

Almost surely, 2^223031120402 is an apocalyptic number.

223031120402 is a deficient number, since it is larger than the sum of its proper divisors (111515560204).

223031120402 is a wasteful number, since it uses less digits than its factorization.

223031120402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111515560203.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 223031120402 its reverse (204021130322), we get a palindrome (427052250724).

The spelling of 223031120402 in words is "two hundred twenty-three billion, thirty-one million, one hundred twenty thousand, four hundred two".