133031221111 has 8 divisors (see below), whose sum is σ = 135879756480. Its totient is φ = 130183439328.

The previous prime is 133031221097. The next prime is 133031221139. The reversal of 133031221111 is 111122130331.

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

It is a cyclic number.

It is not a de Polignac number, because 133031221111 - 2¹¹ = 133031219063 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 (133031224111) 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, 175905 + ... + 544981.

It is an arithmetic number, because the mean of its divisors is an integer number (16984969560).

Almost surely, 2^133031221111 is an apocalyptic number.

133031221111 is a deficient number, since it is larger than the sum of its proper divisors (2848535369).

133031221111 is an equidigital number, since it uses as much as digits as its factorization.

133031221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376793.

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

Adding to 133031221111 its reverse (111122130331), we get a palindrome (244153351442).

The spelling of 133031221111 in words is "one hundred thirty-three billion, thirty-one million, two hundred twenty-one thousand, one hundred eleven".