101110020820 has 24 divisors (see below), whose sum is σ = 213951896928. Its totient is φ = 40135274400.

The previous prime is 101110020797. The next prime is 101110020821. The reversal of 101110020820 is 28020011101.

It is a junction number, because it is equal to n+sod(n) for n = 101110020794 and 101110020803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101110020821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19293186 + ... + 19298425.

It is an arithmetic number, because the mean of its divisors is an integer number (8914662372).

Almost surely, 2^101110020820 is an apocalyptic number.

101110020820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101110020820 is an abundant number, since it is smaller than the sum of its proper divisors (112841876108).

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

101110020820 is a wasteful number, since it uses less digits than its factorization.

101110020820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38591751 (or 38591749 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101110020820 its reverse (28020011101), we get a palindrome (129130031921).

The spelling of 101110020820 in words is "one hundred one billion, one hundred ten million, twenty thousand, eight hundred twenty".