102111320 has 128 divisors (see below), whose sum is σ = 258552000. Its totient is φ = 36126720.

The previous prime is 102111319. The next prime is 102111389. The reversal of 102111320 is 23111201.

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, 903584 + ... + 903696.

Almost surely, 2^102111320 is an apocalyptic number.

102111320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102111320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129276000).

102111320 is an abundant number, since it is smaller than the sum of its proper divisors (156440680).

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

102111320 is a wasteful number, since it uses less digits than its factorization.

102111320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 102111320 is about 10105.0145967237. The cubic root of 102111320 is about 467.4027860814.

Adding to 102111320 its reverse (23111201), we get a palindrome (125222521).

The spelling of 102111320 in words is "one hundred two million, one hundred eleven thousand, three hundred twenty".