101020111100020 has 48 divisors (see below), whose sum is σ = 242524822256640. Its totient is φ = 34624530146304.

The previous prime is 101020111100009. The next prime is 101020111100047. The reversal of 101020111100020 is 20001111020101.

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

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, 113477085 + ... + 114363844.

It is an arithmetic number, because the mean of its divisors is an integer number (5052600463680).

Almost surely, 2^{101020111100020} is an apocalyptic number.

101020111100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101020111100020 is an abundant number, since it is smaller than the sum of its proper divisors (141504711156620).

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

101020111100020 is a wasteful number, since it uses less digits than its factorization.

101020111100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227844112 (or 227844110 counting only the distinct ones).

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

Adding to 101020111100020 its reverse (20001111020101), we get a palindrome (121021222120121).

The spelling of 101020111100020 in words is "one hundred one trillion, twenty billion, one hundred eleven million, one hundred thousand, twenty".