100111101101010 has 48 divisors (see below), whose sum is σ = 262012630201920. Its totient is φ = 26519496976800.

The previous prime is 100111101100991. The next prime is 100111101101027. The reversal of 100111101101010 is 10101101111001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100111101100983 and 100111101101001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3683249880 + ... + 3683277059.

It is an arithmetic number, because the mean of its divisors is an integer number (5458596462540).

Almost surely, 2^{100111101101010} is an apocalyptic number.

100111101101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100111101101010 is an abundant number, since it is smaller than the sum of its proper divisors (161901529100910).

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

100111101101010 is a wasteful number, since it uses less digits than its factorization.

100111101101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7366527103 (or 7366527100 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 100111101101010 its reverse (10101101111001), we get a palindrome (110212202212011).

Subtracting from 100111101101010 its reverse (10101101111001), we obtain a palindrome (90009999990009).

The spelling of 100111101101010 in words is "one hundred trillion, one hundred eleven billion, one hundred one million, one hundred one thousand, ten".