1105620321 has 8 divisors (see below), whose sum is σ = 1587557440. Its totient is φ = 680381712.

The previous prime is 1105620311. The next prime is 1105620323. The reversal of 1105620321 is 1230265011.

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

It is not a de Polignac number, because 1105620321 - 2⁵ = 1105620289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1105620323) 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, 14174581 + ... + 14174658.

It is an arithmetic number, because the mean of its divisors is an integer number (198444680).

Almost surely, 2^1105620321 is an apocalyptic number.

It is an amenable number.

1105620321 is a deficient number, since it is larger than the sum of its proper divisors (481937119).

1105620321 is a wasteful number, since it uses less digits than its factorization.

1105620321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28349255.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1105620321 is about 33250.8694773535. The cubic root of 1105620321 is about 1034.0352343808.

Adding to 1105620321 its reverse (1230265011), we get a palindrome (2335885332).

The spelling of 1105620321 in words is "one billion, one hundred five million, six hundred twenty thousand, three hundred twenty-one".