1111333021213 has 4 divisors (see below), whose sum is σ = 1112594467068. Its totient is φ = 1110071575360.

The previous prime is 1111333021171. The next prime is 1111333021229. The reversal of 1111333021213 is 3121203331111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 690964925049 + 420368096164 = 831243^2 + 648358^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111333021213 is a prime.

It is a super-2 number, since 2×1111333021213² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111333021013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630721606 + ... + 630723367.

It is an arithmetic number, because the mean of its divisors is an integer number (278148616767).

Almost surely, 2^{1111333021213} is an apocalyptic number.

It is an amenable number.

1111333021213 is a deficient number, since it is larger than the sum of its proper divisors (1261445855).

1111333021213 is an equidigital number, since it uses as much as digits as its factorization.

1111333021213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261445854.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1111333021213 its reverse (3121203331111), we get a palindrome (4232536352324).

The spelling of 1111333021213 in words is "one trillion, one hundred eleven billion, three hundred thirty-three million, twenty-one thousand, two hundred thirteen".