111220312003331 has 4 divisors (see below), whose sum is σ = 111220333661712. Its totient is φ = 111220290344952.

The previous prime is 111220312003319. The next prime is 111220312003349. The reversal of 111220312003331 is 133300213022111.

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

It is a cyclic number.

It is not a de Polignac number, because 111220312003331 - 2²² = 111220307809027 is a prime.

It is a super-2 number, since 2×111220312003331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111220312003297 and 111220312003306.

It is not an unprimeable number, because it can be changed into a prime (111220312005331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1724765 + ... + 15013841.

It is an arithmetic number, because the mean of its divisors is an integer number (27805083415428).

Almost surely, 2^{111220312003331} is an apocalyptic number.

111220312003331 is a deficient number, since it is larger than the sum of its proper divisors (21658381).

111220312003331 is an equidigital number, since it uses as much as digits as its factorization.

111220312003331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21658380.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 111220312003331 its reverse (133300213022111), we get a palindrome (244520525025442).

The spelling of 111220312003331 in words is "one hundred eleven trillion, two hundred twenty billion, three hundred twelve million, three thousand, three hundred thirty-one".