223361901938 has 18 divisors (see below), whose sum is σ = 389751890733. Its totient is φ = 95724524280.

The previous prime is 223361901881. The next prime is 223361902003. The reversal of 223361901938 is 839109163322.

It can be written as a sum of positive squares in 2 ways, for example, as 113126613649 + 110235288289 = 336343^2 + 332017^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=334187.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223361901892 and 223361901901.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4654748 + ... + 4702488.

Almost surely, 2^223361901938 is an apocalyptic number.

223361901938 is a deficient number, since it is larger than the sum of its proper divisors (166389988795).

223361901938 is an frugal number, since it uses more digits than its factorization.

223361901938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95498 (or 47750 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 223361901938 in words is "two hundred twenty-three billion, three hundred sixty-one million, nine hundred one thousand, nine hundred thirty-eight".