102111303020 has 24 divisors (see below), whose sum is σ = 215196857568. Its totient is φ = 40699164800.

The previous prime is 102111303011. The next prime is 102111303043. The reversal of 102111303020 is 20303111201.

It is a super-2 number, since 2×102111303020² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102111302986 and 102111303004.

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, 9079016 + ... + 9090255.

It is an arithmetic number, because the mean of its divisors is an integer number (8966535732).

Almost surely, 2^102111303020 is an apocalyptic number.

102111303020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102111303020 is an abundant number, since it is smaller than the sum of its proper divisors (113085554548).

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

102111303020 is a wasteful number, since it uses less digits than its factorization.

102111303020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18169561 (or 18169559 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 102111303020 its reverse (20303111201), we get a palindrome (122414414221).

The spelling of 102111303020 in words is "one hundred two billion, one hundred eleven million, three hundred three thousand, twenty".