102231020 has 24 divisors (see below), whose sum is σ = 225985200. Its totient is φ = 38740032.

The previous prime is 102230981. The next prime is 102231049. The reversal of 102231020 is 20132201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102230992 and 102231010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134135 + ... + 134894.

It is an arithmetic number, because the mean of its divisors is an integer number (9416050).

Almost surely, 2^102231020 is an apocalyptic number.

102231020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102231020 is an abundant number, since it is smaller than the sum of its proper divisors (123754180).

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

102231020 is a wasteful number, since it uses less digits than its factorization.

102231020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269057 (or 269055 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 102231020 is about 10110.9356639235. The cubic root of 102231020 is about 467.5853524087.

Adding to 102231020 its reverse (20132201), we get a palindrome (122363221).

The spelling of 102231020 in words is "one hundred two million, two hundred thirty-one thousand, twenty".