220311231011033 has 4 divisors (see below), whose sum is σ = 220311401384628. Its totient is φ = 220311060637440.

The previous prime is 220311231011021. The next prime is 220311231011129. The reversal of 220311231011033 is 330110132113022.

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 94335142666384 + 125976088344649 = 9712628^2 + 11223907^2 .

It is a cyclic number.

It is not a de Polignac number, because 220311231011033 - 2⁴⁰ = 219211719383257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220311231011933) 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, 83232188 + ... + 85838333.

It is an arithmetic number, because the mean of its divisors is an integer number (55077850346157).

Almost surely, 2^{220311231011033} is an apocalyptic number.

It is an amenable number.

220311231011033 is a deficient number, since it is larger than the sum of its proper divisors (170373595).

220311231011033 is a wasteful number, since it uses less digits than its factorization.

220311231011033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170373594.

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

Adding to 220311231011033 its reverse (330110132113022), we get a palindrome (550421363124055).

The spelling of 220311231011033 in words is "two hundred twenty trillion, three hundred eleven billion, two hundred thirty-one million, eleven thousand, thirty-three".