121272003 has 24 divisors (see below), whose sum is σ = 187883280. Its totient is φ = 75142080.

The previous prime is 121272001. The next prime is 121272007. The reversal of 121272003 is 300272121.

It is not a de Polignac number, because 121272003 - 2¹ = 121272001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121272001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2373 + ... + 15753.

It is an arithmetic number, because the mean of its divisors is an integer number (7828470).

Almost surely, 2^121272003 is an apocalyptic number.

121272003 is a deficient number, since it is larger than the sum of its proper divisors (66611277).

121272003 is a wasteful number, since it uses less digits than its factorization.

121272003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13459 (or 13456 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 121272003 is about 11012.3568322135. The cubic root of 121272003 is about 494.9790869646.

The spelling of 121272003 in words is "one hundred twenty-one million, two hundred seventy-two thousand, three".