102120320200 has 24 divisors (see below), whose sum is σ = 237429744930. Its totient is φ = 40848128000.

The previous prime is 102120320177. The next prime is 102120320207. The reversal of 102120320200 is 2023021201.

It can be written as a sum of positive squares in 3 ways, for example, as 68703748996 + 33416571204 = 262114^2 + 182802^2 .

It is not an unprimeable number, because it can be changed into a prime (102120320207) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 255300601 + ... + 255301000.

Almost surely, 2^102120320200 is an apocalyptic number.

102120320200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102120320200 is an abundant number, since it is smaller than the sum of its proper divisors (135309424730).

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

102120320200 is a wasteful number, since it uses less digits than its factorization.

102120320200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510601617 (or 510601608 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 102120320200 its reverse (2023021201), we get a palindrome (104143341401).

The spelling of 102120320200 in words is "one hundred two billion, one hundred twenty million, three hundred twenty thousand, two hundred".