121230340 has 48 divisors (see below), whose sum is σ = 317407104. Its totient is φ = 37785600.

The previous prime is 121230337. The next prime is 121230377. The reversal of 121230340 is 43032121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37821 + ... + 40900.

It is an arithmetic number, because the mean of its divisors is an integer number (6612648).

Almost surely, 2^121230340 is an apocalyptic number.

121230340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121230340 is an abundant number, since it is smaller than the sum of its proper divisors (196176764).

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

121230340 is a wasteful number, since it uses less digits than its factorization.

121230340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78748 (or 78746 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 121230340 is about 11010.4650219689. The cubic root of 121230340 is about 494.9223971125.

Adding to 121230340 its reverse (43032121), we get a palindrome (164262461).

The spelling of 121230340 in words is "one hundred twenty-one million, two hundred thirty thousand, three hundred forty".