121601308 has 12 divisors (see below), whose sum is σ = 215366760. Its totient is φ = 60067952.

The previous prime is 121601287. The next prime is 121601309. The reversal of 121601308 is 803106121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121601309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182803 + ... + 183466.

It is an arithmetic number, because the mean of its divisors is an integer number (17947230).

Almost surely, 2^121601308 is an apocalyptic number.

It is an amenable number.

121601308 is a deficient number, since it is larger than the sum of its proper divisors (93765452).

121601308 is a wasteful number, since it uses less digits than its factorization.

121601308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366356 (or 366354 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 121601308 is about 11027.2983091961. The cubic root of 121601308 is about 495.4267082048.

Adding to 121601308 its reverse (803106121), we get a palindrome (924707429).

The spelling of 121601308 in words is "one hundred twenty-one million, six hundred one thousand, three hundred eight".