121023003 has 16 divisors (see below), whose sum is σ = 167392800. Its totient is φ = 77683200.

The previous prime is 121022981. The next prime is 121023013. The reversal of 121023003 is 300320121.

It is a happy number.

It is not a de Polignac number, because 121023003 - 2¹⁷ = 120891931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121023003.

It is not an unprimeable number, because it can be changed into a prime (121023013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33153 + ... + 36621.

It is an arithmetic number, because the mean of its divisors is an integer number (10462050).

Almost surely, 2^121023003 is an apocalyptic number.

121023003 is a deficient number, since it is larger than the sum of its proper divisors (46369797).

121023003 is a wasteful number, since it uses less digits than its factorization.

121023003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3902.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 121023003 is about 11001.0455412202. The cubic root of 121023003 is about 494.6400852726.

Adding to 121023003 its reverse (300320121), we get a palindrome (421343124).

The spelling of 121023003 in words is "one hundred twenty-one million, twenty-three thousand, three".