102111320020 has 24 divisors (see below), whose sum is σ = 214569298944. Its totient is φ = 40818713376.

The previous prime is 102111320011. The next prime is 102111320141. The reversal of 102111320020 is 20023111201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1580964 + ... + 1644283.

It is an arithmetic number, because the mean of its divisors is an integer number (8940387456).

Almost surely, 2^102111320020 is an apocalyptic number.

102111320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102111320020 is an abundant number, since it is smaller than the sum of its proper divisors (112457978924).

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

102111320020 is a wasteful number, since it uses less digits than its factorization.

102111320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3226839 (or 3226837 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 102111320020 its reverse (20023111201), we get a palindrome (122134431221).

The spelling of 102111320020 in words is "one hundred two billion, one hundred eleven million, three hundred twenty thousand, twenty".