1223013001 has 12 divisors (see below), whose sum is σ = 1449534852. Its totient is φ = 1028515488.

The previous prime is 1223012981. The next prime is 1223013037. The reversal of 1223013001 is 1003103221.

It can be written as a sum of positive squares in 2 ways, for example, as 552203001 + 670810000 = 23499^2 + 25900^2 .

It is not a de Polignac number, because 1223013001 - 2¹¹ = 1223010953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223013041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232870 + ... + 238063.

It is an arithmetic number, because the mean of its divisors is an integer number (120794571).

Almost surely, 2^1223013001 is an apocalyptic number.

It is an amenable number.

1223013001 is a deficient number, since it is larger than the sum of its proper divisors (226521851).

1223013001 is an equidigital number, since it uses as much as digits as its factorization.

1223013001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471000 (or 470993 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1223013001 is about 34971.6027799699. The cubic root of 1223013001 is about 1069.4086466573.

Adding to 1223013001 its reverse (1003103221), we get a palindrome (2226116222).

The spelling of 1223013001 in words is "one billion, two hundred twenty-three million, thirteen thousand, one".