102102110011020 has 48 divisors (see below), whose sum is σ = 326726752036608. Its totient is φ = 23337625145280.

The previous prime is 102102110010941. The next prime is 102102110011087. The reversal of 102102110011020 is 20110011201201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 102102110010987 and 102102110011005.

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, 121550130546 + ... + 121550131385.

It is an arithmetic number, because the mean of its divisors is an integer number (6806807334096).

Almost surely, 2^{102102110011020} is an apocalyptic number.

102102110011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102102110011020 is an abundant number, since it is smaller than the sum of its proper divisors (224624642025588).

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

102102110011020 is a wasteful number, since it uses less digits than its factorization.

102102110011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243100261950 (or 243100261948 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102102110011020 its reverse (20110011201201), we get a palindrome (122212121212221).

The spelling of 102102110011020 in words is "one hundred two trillion, one hundred two billion, one hundred ten million, eleven thousand, twenty".