1136220321 has 8 divisors (see below), whose sum is σ = 1515117184. Its totient is φ = 757401840.

The previous prime is 1136220301. The next prime is 1136220353. The reversal of 1136220321 is 1230226311.

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

It is not a de Polignac number, because 1136220321 - 2²³ = 1127831713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1136220301) 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, 41016 + ... + 62886.

It is an arithmetic number, because the mean of its divisors is an integer number (189389648).

Almost surely, 2^1136220321 is an apocalyptic number.

It is an amenable number.

1136220321 is a deficient number, since it is larger than the sum of its proper divisors (378896863).

1136220321 is a wasteful number, since it uses less digits than its factorization.

1136220321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39191.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1136220321 is about 33707.8673457696. The cubic root of 1136220321 is about 1043.4881401442.

Adding to 1136220321 its reverse (1230226311), we get a palindrome (2366446632).

The spelling of 1136220321 in words is "one billion, one hundred thirty-six million, two hundred twenty thousand, three hundred twenty-one".