1223643287171 has 8 divisors (see below), whose sum is σ = 1239783870864. Its totient is φ = 1207581631200.

The previous prime is 1223643287089. The next prime is 1223643287201. The reversal of 1223643287171 is 1717823463221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1223643287171 - 2³⁴ = 1206463417987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223643287071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19700720 + ... + 19762733.

It is an arithmetic number, because the mean of its divisors is an integer number (154972983858).

Almost surely, 2^{1223643287171} is an apocalyptic number.

1223643287171 is a deficient number, since it is larger than the sum of its proper divisors (16140583693).

1223643287171 is a wasteful number, since it uses less digits than its factorization.

1223643287171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39463861.

The product of its digits is 677376, while the sum is 47.

The spelling of 1223643287171 in words is "one trillion, two hundred twenty-three billion, six hundred forty-three million, two hundred eighty-seven thousand, one hundred seventy-one".