101111210020 has 96 divisors (see below), whose sum is σ = 219545948160. Its totient is φ = 39099594240.

The previous prime is 101111209957. The next prime is 101111210051. The reversal of 101111210020 is 20012111101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 101111209979 and 101111210006.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16885467 + ... + 16891453.

It is an arithmetic number, because the mean of its divisors is an integer number (2286936960).

Almost surely, 2^101111210020 is an apocalyptic number.

101111210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101111210020 is an abundant number, since it is smaller than the sum of its proper divisors (118434738140).

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

101111210020 is a wasteful number, since it uses less digits than its factorization.

101111210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6293 (or 6291 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 101111210020 its reverse (20012111101), we get a palindrome (121123321121).

The spelling of 101111210020 in words is "one hundred one billion, one hundred eleven million, two hundred ten thousand, twenty".