1223011405 has 32 divisors (see below), whose sum is σ = 1848672000. Its totient is φ = 754513920.

The previous prime is 1223011373. The next prime is 1223011409. The reversal of 1223011405 is 5041103221.

It is not a de Polignac number, because 1223011405 - 2⁵ = 1223011373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223011409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20971 + ... + 53719.

It is an arithmetic number, because the mean of its divisors is an integer number (57771000).

Almost surely, 2^1223011405 is an apocalyptic number.

It is an amenable number.

1223011405 is a deficient number, since it is larger than the sum of its proper divisors (625660595).

1223011405 is a wasteful number, since it uses less digits than its factorization.

1223011405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32869.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1223011405 is about 34971.5799614487. The cubic root of 1223011405 is about 1069.4081814736.

Adding to 1223011405 its reverse (5041103221), we get a palindrome (6264114626).

The spelling of 1223011405 in words is "one billion, two hundred twenty-three million, eleven thousand, four hundred five".