1121415321 has 16 divisors (see below), whose sum is σ = 1694987840. Its totient is φ = 653780160.

The previous prime is 1121415311. The next prime is 1121415329. The reversal of 1121415321 is 1235141211.

It is not a de Polignac number, because 1121415321 - 2⁵ = 1121415289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121415329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 755950 + ... + 757431.

It is an arithmetic number, because the mean of its divisors is an integer number (105936740).

Almost surely, 2^1121415321 is an apocalyptic number.

It is an amenable number.

1121415321 is a deficient number, since it is larger than the sum of its proper divisors (573572519).

1121415321 is a wasteful number, since it uses less digits than its factorization.

1121415321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513416.

The product of its digits is 240, while the sum is 21.

The square root of 1121415321 is about 33487.5397872104. The cubic root of 1121415321 is about 1038.9360794478.

Adding to 1121415321 its reverse (1235141211), we get a palindrome (2356556532).

The spelling of 1121415321 in words is "one billion, one hundred twenty-one million, four hundred fifteen thousand, three hundred twenty-one".