220120123133311 has 4 divisors (see below), whose sum is σ = 220177341781072. Its totient is φ = 220062904485552.

The previous prime is 220120123133299. The next prime is 220120123133321. The reversal of 220120123133311 is 113331321021022.

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 220120123133311 - 2³³ = 220111533198719 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 (220120123133321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28609318110 + ... + 28609325803.

It is an arithmetic number, because the mean of its divisors is an integer number (55044335445268).

Almost surely, 2^{220120123133311} is an apocalyptic number.

220120123133311 is a deficient number, since it is larger than the sum of its proper divisors (57218647761).

220120123133311 is an equidigital number, since it uses as much as digits as its factorization.

220120123133311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57218647760.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 220120123133311 its reverse (113331321021022), we get a palindrome (333451444154333).

The spelling of 220120123133311 in words is "two hundred twenty trillion, one hundred twenty billion, one hundred twenty-three million, one hundred thirty-three thousand, three hundred eleven".