1113303011221 has 4 divisors (see below), whose sum is σ = 1140456743244. Its totient is φ = 1086149279200.

The previous prime is 1113303011179. The next prime is 1113303011243. The reversal of 1113303011221 is 1221103033111.

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 178494420196 + 934808591025 = 422486^2 + 966855^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113303011221 - 2²³ = 1113294622613 is a prime.

It is a super-3 number, since 3×1113303011221³ (a number of 37 digits) contains 333 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 (1113303011281) 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, 13576865950 + ... + 13576866031.

It is an arithmetic number, because the mean of its divisors is an integer number (285114185811).

Almost surely, 2^{1113303011221} is an apocalyptic number.

It is an amenable number.

1113303011221 is a deficient number, since it is larger than the sum of its proper divisors (27153732023).

1113303011221 is an equidigital number, since it uses as much as digits as its factorization.

1113303011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27153732022.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1113303011221 its reverse (1221103033111), we get a palindrome (2334406044332).

The spelling of 1113303011221 in words is "one trillion, one hundred thirteen billion, three hundred three million, eleven thousand, two hundred twenty-one".