111101012020013 has 4 divisors (see below), whose sum is σ = 111314257724988. Its totient is φ = 110887766315040.

The previous prime is 111101012020003. The next prime is 111101012020039. The reversal of 111101012020013 is 310020210101111.

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 14623297217764 + 96477714802249 = 3824042^2 + 9822307^2 .

It is a cyclic number.

It is not a de Polignac number, because 111101012020013 - 2¹⁴ = 111101012003629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111101012020013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111101012020003) 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, 106622851706 + ... + 106622852747.

It is an arithmetic number, because the mean of its divisors is an integer number (27828564431247).

Almost surely, 2^{111101012020013} is an apocalyptic number.

It is an amenable number.

111101012020013 is a deficient number, since it is larger than the sum of its proper divisors (213245704975).

111101012020013 is an equidigital number, since it uses as much as digits as its factorization.

111101012020013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213245704974.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 111101012020013 its reverse (310020210101111), we get a palindrome (421121222121124).

The spelling of 111101012020013 in words is "one hundred eleven trillion, one hundred one billion, twelve million, twenty thousand, thirteen".