111232020313021 has 4 divisors (see below), whose sum is σ = 117775080331452. Its totient is φ = 104688960294592.

The previous prime is 111232020313013. The next prime is 111232020313201. The reversal of 111232020313021 is 120313020232111.

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 77297259436996 + 33934760876025 = 8791886^2 + 5825355^2 .

It is not a de Polignac number, because 111232020313021 - 2³ = 111232020313013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111232020312983 and 111232020313001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111232020353021) 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, 3271530009190 + ... + 3271530009223.

It is an arithmetic number, because the mean of its divisors is an integer number (29443770082863).

Almost surely, 2^{111232020313021} is an apocalyptic number.

It is an amenable number.

111232020313021 is a deficient number, since it is larger than the sum of its proper divisors (6543060018431).

111232020313021 is an equidigital number, since it uses as much as digits as its factorization.

111232020313021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6543060018430.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 111232020313021 its reverse (120313020232111), we get a palindrome (231545040545132).

The spelling of 111232020313021 in words is "one hundred eleven trillion, two hundred thirty-two billion, twenty million, three hundred thirteen thousand, twenty-one".