111020021020013 has 64 divisors (see below), whose sum is σ = 136347717312000. Its totient is φ = 88371247878144.

The previous prime is 111020021020001. The next prime is 111020021020063. The reversal of 111020021020013 is 310020120020111.

It is not a de Polignac number, because 111020021020013 - 2³⁰ = 111018947278189 is a prime.

It is a super-4 number, since 4×111020021020013⁴ (a number of 57 digits) contains 4444 as substring.

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 111020021020013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020021020063) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3482091170 + ... + 3482123052.

It is an arithmetic number, because the mean of its divisors is an integer number (2130433083000).

Almost surely, 2^{111020021020013} is an apocalyptic number.

It is an amenable number.

111020021020013 is a deficient number, since it is larger than the sum of its proper divisors (25327696291987).

111020021020013 is a wasteful number, since it uses less digits than its factorization.

111020021020013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37254.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 111020021020013 its reverse (310020120020111), we get a palindrome (421040141040124).

The spelling of 111020021020013 in words is "one hundred eleven trillion, twenty billion, twenty-one million, twenty thousand, thirteen".