1121023321 has 8 divisors (see below), whose sum is σ = 1223457984. Its totient is φ = 1018675920.

The previous prime is 1121023307. The next prime is 1121023357. The reversal of 1121023321 is 1233201211.

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 1121023321 - 2¹⁷ = 1120892249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121023295 and 1121023304.

It is not an unprimeable number, because it can be changed into a prime (1121023301) 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, 6676 + ... + 47818.

It is an arithmetic number, because the mean of its divisors is an integer number (152932248).

Almost surely, 2^1121023321 is an apocalyptic number.

1121023321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1121023321 is a deficient number, since it is larger than the sum of its proper divisors (102434663).

1121023321 is a wasteful number, since it uses less digits than its factorization.

1121023321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43631.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1121023321 is about 33481.6863523927. The cubic root of 1121023321 is about 1038.8150091067.

Adding to 1121023321 its reverse (1233201211), we get a palindrome (2354224532).

The spelling of 1121023321 in words is "one billion, one hundred twenty-one million, twenty-three thousand, three hundred twenty-one".