1120321213 has 12 divisors (see below), whose sum is σ = 1235403484. Its totient is φ = 1015185600.

The previous prime is 1120321207. The next prime is 1120321219. The reversal of 1120321213 is 3121230211.

It is an interprime number because it is at equal distance from previous prime (1120321207) and next prime (1120321219).

It can be written as a sum of positive squares in 2 ways, for example, as 316768804 + 803552409 = 17798^2 + 28347^2 .

It is not a de Polignac number, because 1120321213 - 2¹³ = 1120313021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120321219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23083 + ... + 52663.

Almost surely, 2^1120321213 is an apocalyptic number.

It is an amenable number.

1120321213 is a deficient number, since it is larger than the sum of its proper divisors (115082271).

1120321213 is a wasteful number, since it uses less digits than its factorization.

1120321213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29916 (or 29905 counting only the distinct ones).

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

The square root of 1120321213 is about 33471.1997544157. The cubic root of 1120321213 is about 1038.5980904407.

Adding to 1120321213 its reverse (3121230211), we get a palindrome (4241551424).

The spelling of 1120321213 in words is "one billion, one hundred twenty million, three hundred twenty-one thousand, two hundred thirteen".