1121100321 has 8 divisors (see below), whose sum is σ = 1630691424. Its totient is φ = 679454720.

The previous prime is 1121100319. The next prime is 1121100341. The reversal of 1121100321 is 1230011211.

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

It is a cyclic number.

It is not a de Polignac number, because 1121100321 - 2¹ = 1121100319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121100297 and 1121100306.

It is not an unprimeable number, because it can be changed into a prime (1121100341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16986336 + ... + 16986401.

It is an arithmetic number, because the mean of its divisors is an integer number (203836428).

Almost surely, 2^1121100321 is an apocalyptic number.

1121100321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1121100321 is a deficient number, since it is larger than the sum of its proper divisors (509591103).

1121100321 is a wasteful number, since it uses less digits than its factorization.

1121100321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33972751.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1121100321 is about 33482.8362149923. The cubic root of 1121100321 is about 1038.8387930081.

Adding to 1121100321 its reverse (1230011211), we get a palindrome (2351111532).

The spelling of 1121100321 in words is "one billion, one hundred twenty-one million, one hundred thousand, three hundred twenty-one".