102311216 has 60 divisors (see below), whose sum is σ = 236891088. Its totient is φ = 42650496.

The previous prime is 102311207. The next prime is 102311227. The reversal of 102311216 is 612113201.

It is a junction number, because it is equal to n+sod(n) for n = 102311194 and 102311203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27245 + ... + 30771.

Almost surely, 2^102311216 is an apocalyptic number.

102311216 is a gapful number since it is divisible by the number (16) 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 102311216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118445544).

102311216 is an abundant number, since it is smaller than the sum of its proper divisors (134579872).

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

102311216 is a wasteful number, since it uses less digits than its factorization.

102311216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3586 (or 3573 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 102311216 is about 10114.9006915540. The cubic root of 102311216 is about 467.7075875641.

Adding to 102311216 its reverse (612113201), we get a palindrome (714424417).

The spelling of 102311216 in words is "one hundred two million, three hundred eleven thousand, two hundred sixteen".