1331033220111 has 8 divisors (see below), whose sum is σ = 2028241097344. Its totient is φ = 760590411480.

The previous prime is 1331033220089. The next prime is 1331033220149. The reversal of 1331033220111 is 1110223301331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1331033220111 - 2⁵ = 1331033220079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 63382534291 = 1331033220111 / (1 + 3 + 3 + 1 + 0 + 3 + 3 + 2 + 2 + 0 + 1 + 1 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331033220151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31691267125 + ... + 31691267166.

It is an arithmetic number, because the mean of its divisors is an integer number (253530137168).

Almost surely, 2^{1331033220111} is an apocalyptic number.

1331033220111 is a deficient number, since it is larger than the sum of its proper divisors (697207877233).

1331033220111 is an equidigital number, since it uses as much as digits as its factorization.

1331033220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63382534301.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1331033220111 its reverse (1110223301331), we get a palindrome (2441256521442).

The spelling of 1331033220111 in words is "one trillion, three hundred thirty-one billion, thirty-three million, two hundred twenty thousand, one hundred eleven".