111012111121113 has 24 divisors (see below), whose sum is σ = 161070272097800. Its totient is φ = 73676099729664.

The previous prime is 111012111121103. The next prime is 111012111121141. The reversal of 111012111121113 is 311121111210111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 77015841601689 + 33996269519424 = 8775867^2 + 5830632^2 .

It is not a de Polignac number, because 111012111121113 - 2⁴ = 111012111121097 is a prime.

It is a super-2 number, since 2×111012111121113² (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 (111012111121103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14079381 + ... + 20500077.

Almost surely, 2^{111012111121113} is an apocalyptic number.

It is an amenable number.

111012111121113 is a deficient number, since it is larger than the sum of its proper divisors (50058160976687).

111012111121113 is a wasteful number, since it uses less digits than its factorization.

111012111121113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6429321 (or 6429318 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 18.

Adding to 111012111121113 its reverse (311121111210111), we get a palindrome (422133222331224).

The spelling of 111012111121113 in words is "one hundred eleven trillion, twelve billion, one hundred eleven million, one hundred twenty-one thousand, one hundred thirteen".