121001003 has 8 divisors (see below), whose sum is σ = 123890880. Its totient is φ = 118140480.

The previous prime is 121000993. The next prime is 121001033. The reversal of 121001003 is 300100121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121001003 - 2¹² = 120996907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121001033) 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, 1118 + ... + 15596.

It is an arithmetic number, because the mean of its divisors is an integer number (15486360).

Almost surely, 2^121001003 is an apocalyptic number.

121001003 is a deficient number, since it is larger than the sum of its proper divisors (2889877).

121001003 is a wasteful number, since it uses less digits than its factorization.

121001003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14677.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 121001003 is about 11000.0455908146. The cubic root of 121001003 is about 494.6101109673.

Adding to 121001003 its reverse (300100121), we get a palindrome (421101124).

The spelling of 121001003 in words is "one hundred twenty-one million, one thousand, three".