121303308 has 24 divisors (see below), whose sum is σ = 323475712. Its totient is φ = 34658064.

The previous prime is 121303307. The next prime is 121303321. The reversal of 121303308 is 803303121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (121303307) 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, 721960 + ... + 722127.

Almost surely, 2^121303308 is an apocalyptic number.

It is an amenable number.

121303308 is an abundant number, since it is smaller than the sum of its proper divisors (202172404).

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

121303308 is a wasteful number, since it uses less digits than its factorization.

121303308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444101 (or 1444099 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 121303308 is about 11013.7780983639. The cubic root of 121303308 is about 495.0216743902.

Adding to 121303308 its reverse (803303121), we get a palindrome (924606429).

The spelling of 121303308 in words is "one hundred twenty-one million, three hundred three thousand, three hundred eight".