121303272 has 16 divisors (see below), whose sum is σ = 303258240. Its totient is φ = 40434416.

The previous prime is 121303271. The next prime is 121303291. The reversal of 121303272 is 272303121.

It is not an unprimeable number, because it can be changed into a prime (121303271) 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, 2527128 + ... + 2527175.

It is an arithmetic number, because the mean of its divisors is an integer number (18953640).

Almost surely, 2^121303272 is an apocalyptic number.

121303272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121303272 is an abundant number, since it is smaller than the sum of its proper divisors (181954968).

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

121303272 is a wasteful number, since it uses less digits than its factorization.

121303272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5054312 (or 5054308 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 121303272 is about 11013.7764640472. The cubic root of 121303272 is about 495.0216254199.

Adding to 121303272 its reverse (272303121), we get a palindrome (393606393).

The spelling of 121303272 in words is "one hundred twenty-one million, three hundred three thousand, two hundred seventy-two".