102320213220 has 72 divisors (see below), whose sum is σ = 326706656640. Its totient is φ = 25849316160.

The previous prime is 102320213197. The next prime is 102320213263. The reversal of 102320213220 is 22312023201.

102320213220 is a `hidden beast` number, since 1 + 0 + 2 + 320 + 21 + 322 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 102320213193 and 102320213202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14955676 + ... + 14962515.

Almost surely, 2^102320213220 is an apocalyptic number.

102320213220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102320213220 is an abundant number, since it is smaller than the sum of its proper divisors (224386443420).

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

102320213220 is a wasteful number, since it uses less digits than its factorization.

102320213220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29918225 (or 29918220 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 102320213220 its reverse (22312023201), we get a palindrome (124632236421).

The spelling of 102320213220 in words is "one hundred two billion, three hundred twenty million, two hundred thirteen thousand, two hundred twenty".