111021203331013 has 4 divisors (see below), whose sum is σ = 111026610316108. Its totient is φ = 111015796345920.

The previous prime is 111021203330969. The next prime is 111021203331043. The reversal of 111021203331013 is 310133302120111.

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 90631580483844 + 20389622847169 = 9520062^2 + 4515487^2 .

It is a cyclic number.

It is not a de Polignac number, because 111021203331013 - 2⁹ = 111021203330501 is a prime.

It is a super-2 number, since 2×111021203331013² (a number of 29 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 (111021203331043) 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, 2703461748 + ... + 2703502813.

It is an arithmetic number, because the mean of its divisors is an integer number (27756652579027).

Almost surely, 2^{111021203331013} is an apocalyptic number.

It is an amenable number.

111021203331013 is a deficient number, since it is larger than the sum of its proper divisors (5406985095).

111021203331013 is an equidigital number, since it uses as much as digits as its factorization.

111021203331013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5406985094.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 111021203331013 its reverse (310133302120111), we get a palindrome (421154505451124).

The spelling of 111021203331013 in words is "one hundred eleven trillion, twenty-one billion, two hundred three million, three hundred thirty-one thousand, thirteen".