102120111110 has 32 divisors (see below), whose sum is σ = 193541667840. Its totient is φ = 38687961312.

The previous prime is 102120111011. The next prime is 102120111151. The reversal of 102120111110 is 11111021201.

It is a junction number, because it is equal to n+sod(n) for n = 102120111091 and 102120111100.

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 15 ways as a sum of consecutive naturals, for example, 673547 + ... + 811113.

It is an arithmetic number, because the mean of its divisors is an integer number (6048177120).

Almost surely, 2^102120111110 is an apocalyptic number.

102120111110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102120111110 is a deficient number, since it is larger than the sum of its proper divisors (91421556730).

102120111110 is a wasteful number, since it uses less digits than its factorization.

102120111110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141500.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 102120111110 its reverse (11111021201), we get a palindrome (113231132311).

The spelling of 102120111110 in words is "one hundred two billion, one hundred twenty million, one hundred eleven thousand, one hundred ten".