111012421134401 has 4 divisors (see below), whose sum is σ = 111013370456772. Its totient is φ = 111011471812032.

The previous prime is 111012421134397. The next prime is 111012421134403. The reversal of 111012421134401 is 104431124210111.

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 72970479260176 + 38041941874225 = 8542276^2 + 6167815^2 .

It is a cyclic number.

It is not a de Polignac number, because 111012421134401 - 2² = 111012421134397 is a prime.

It is a super-2 number, since 2×111012421134401² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111012421134403) 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, 474485756 + ... + 474719661.

It is an arithmetic number, because the mean of its divisors is an integer number (27753342614193).

Almost surely, 2^{111012421134401} is an apocalyptic number.

It is an amenable number.

111012421134401 is a deficient number, since it is larger than the sum of its proper divisors (949322371).

111012421134401 is an equidigital number, since it uses as much as digits as its factorization.

111012421134401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949322370.

The product of its (nonzero) digits is 768, while the sum is 26.

Adding to 111012421134401 its reverse (104431124210111), we get a palindrome (215443545344512).

The spelling of 111012421134401 in words is "one hundred eleven trillion, twelve billion, four hundred twenty-one million, one hundred thirty-four thousand, four hundred one".