1223343001 has 4 divisors (see below), whose sum is σ = 1295304372. Its totient is φ = 1151381632.

The previous prime is 1223342977. The next prime is 1223343019. The reversal of 1223343001 is 1003433221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1150837776 + 72505225 = 33924^2 + 8515^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223343001 - 2⁹ = 1223342489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223343001.

It is not an unprimeable number, because it can be changed into a prime (1223343041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35980660 + ... + 35980693.

It is an arithmetic number, because the mean of its divisors is an integer number (323826093).

Almost surely, 2^1223343001 is an apocalyptic number.

It is an amenable number.

1223343001 is a deficient number, since it is larger than the sum of its proper divisors (71961371).

1223343001 is an equidigital number, since it uses as much as digits as its factorization.

1223343001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71961370.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1223343001 is about 34976.3205754979. The cubic root of 1223343001 is about 1069.5048225543.

Adding to 1223343001 its reverse (1003433221), we get a palindrome (2226776222).

The spelling of 1223343001 in words is "one billion, two hundred twenty-three million, three hundred forty-three thousand, one".