102111200120 has 32 divisors (see below), whose sum is σ = 229760057520. Its totient is φ = 40842727680.

The previous prime is 102111200119. The next prime is 102111200141. The reversal of 102111200120 is 21002111201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1307699 + ... + 1383581.

Almost surely, 2^102111200120 is an apocalyptic number.

102111200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102111200120 is an abundant number, since it is smaller than the sum of its proper divisors (127648857400).

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

102111200120 is a wasteful number, since it uses less digits than its factorization.

102111200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109535 (or 109531 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102111200120 its reverse (21002111201), we get a palindrome (123113311321).

The spelling of 102111200120 in words is "one hundred two billion, one hundred eleven million, two hundred thousand, one hundred twenty".