320202021023111 has 4 divisors (see below), whose sum is σ = 321060471481992. Its totient is φ = 319343570564232.

The previous prime is 320202021023089. The next prime is 320202021023141. The reversal of 320202021023111 is 111320120202023.

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 320202021023111 - 2⁴² = 315803974512007 is a prime.

It is a super-2 number, since 2×320202021023111² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320202021023141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429225228881 + ... + 429225229626.

It is an arithmetic number, because the mean of its divisors is an integer number (80265117870498).

Almost surely, 2^{320202021023111} is an apocalyptic number.

320202021023111 is a deficient number, since it is larger than the sum of its proper divisors (858450458881).

320202021023111 is an equidigital number, since it uses as much as digits as its factorization.

320202021023111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858450458880.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 320202021023111 its reverse (111320120202023), we get a palindrome (431522141225134).

The spelling of 320202021023111 in words is "three hundred twenty trillion, two hundred two billion, twenty-one million, twenty-three thousand, one hundred eleven".