111001010010100 has 54 divisors (see below), whose sum is σ = 280198263852150. Its totient is φ = 38057489144640.

The previous prime is 111001010010089. The next prime is 111001010010101. The reversal of 111001010010100 is 1010010100111.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 134809402896 + 110866200607204 = 367164^2 + 10529302^2 .

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111001010010101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11326628775 + ... + 11326638574.

Almost surely, 2^{111001010010100} is an apocalyptic number.

111001010010100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111001010010100 is an abundant number, since it is smaller than the sum of its proper divisors (169197253842050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111001010010100 is a wasteful number, since it uses less digits than its factorization.

111001010010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22653267377 (or 22653267363 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 111001010010100 its reverse (1010010100111), we get a palindrome (112011020110211).

The spelling of 111001010010100 in words is "one hundred eleven trillion, one billion, ten million, ten thousand, one hundred".