1223020742 has 8 divisors (see below), whose sum is σ = 1893709632. Its totient is φ = 591784200.

The previous prime is 1223020723. The next prime is 1223020751. The reversal of 1223020742 is 2470203221.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9863009 + ... + 9863132.

It is an arithmetic number, because the mean of its divisors is an integer number (236713704).

Almost surely, 2^1223020742 is an apocalyptic number.

1223020742 is a deficient number, since it is larger than the sum of its proper divisors (670688890).

1223020742 is a wasteful number, since it uses less digits than its factorization.

1223020742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19726174.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 1223020742 is about 34971.7134553056. The cubic root of 1223020742 is about 1069.4109029088.

Adding to 1223020742 its reverse (2470203221), we get a palindrome (3693223963).

The spelling of 1223020742 in words is "one billion, two hundred twenty-three million, twenty thousand, seven hundred forty-two".