223534435387 has 2 divisors, whose sum is σ = 223534435388. Its totient is φ = 223534435386.

The previous prime is 223534435381. The next prime is 223534435403. The reversal of 223534435387 is 783534435322.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223534435387 - 2¹⁹ = 223533911099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223534435387.

It is not a weakly prime, because it can be changed into another prime (223534435381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111767217693 + 111767217694.

It is an arithmetic number, because the mean of its divisors is an integer number (111767217694).

Almost surely, 2^223534435387 is an apocalyptic number.

223534435387 is a deficient number, since it is larger than the sum of its proper divisors (1).

223534435387 is an equidigital number, since it uses as much as digits as its factorization.

223534435387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7257600, while the sum is 49.

The spelling of 223534435387 in words is "two hundred twenty-three billion, five hundred thirty-four million, four hundred thirty-five thousand, three hundred eighty-seven".