101111101101020 has 48 divisors (see below), whose sum is σ = 214096916880000. Its totient is φ = 40108927709760.

The previous prime is 101111101101019. The next prime is 101111101101037. The reversal of 101111101101020 is 20101101111101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101111101100992 and 101111101101010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8945210 + ... + 16799969.

It is an arithmetic number, because the mean of its divisors is an integer number (4460352435000).

Almost surely, 2^{101111101101020} is an apocalyptic number.

101111101101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101111101101020 is an abundant number, since it is smaller than the sum of its proper divisors (112985815778980).

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

101111101101020 is a wasteful number, since it uses less digits than its factorization.

101111101101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25746818 (or 25746816 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 101111101101020 its reverse (20101101111101), we get a palindrome (121212202212121).

The spelling of 101111101101020 in words is "one hundred one trillion, one hundred eleven billion, one hundred one million, one hundred one thousand, twenty".