121230320 has 40 divisors (see below), whose sum is σ = 282638160. Its totient is φ = 48358400.

The previous prime is 121230313. The next prime is 121230323. The reversal of 121230320 is 23032121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 121230295 and 121230304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121230323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30191 + ... + 33969.

It is an arithmetic number, because the mean of its divisors is an integer number (7065954).

Almost surely, 2^121230320 is an apocalyptic number.

121230320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121230320 is an abundant number, since it is smaller than the sum of its proper divisors (161407840).

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

121230320 is a wasteful number, since it uses less digits than its factorization.

121230320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4193 (or 4187 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 121230320 is about 11010.4641137420. The cubic root of 121230320 is about 494.9223698959.

Adding to 121230320 its reverse (23032121), we get a palindrome (144262441).

The spelling of 121230320 in words is "one hundred twenty-one million, two hundred thirty thousand, three hundred twenty".