102111214140 has 96 divisors (see below), whose sum is σ = 342116228160. Its totient is φ = 25135066368.

The previous prime is 102111214111. The next prime is 102111214159. The reversal of 102111214140 is 41412111201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7265859 + ... + 7279898.

It is an arithmetic number, because the mean of its divisors is an integer number (3563710710).

Almost surely, 2^102111214140 is an apocalyptic number.

102111214140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102111214140 is an abundant number, since it is smaller than the sum of its proper divisors (240005014020).

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

102111214140 is a wasteful number, since it uses less digits than its factorization.

102111214140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14545788 (or 14545780 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 102111214140 its reverse (41412111201), we get a palindrome (143523325341).

The spelling of 102111214140 in words is "one hundred two billion, one hundred eleven million, two hundred fourteen thousand, one hundred forty".