121010002003 has 4 divisors (see below), whose sum is σ = 132010911288. Its totient is φ = 110009092720.

The previous prime is 121010001989. The next prime is 121010002013. The reversal of 121010002003 is 300200010121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121010002003 - 2²¹ = 121007904851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121010002013) 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, 5500454626 + ... + 5500454647.

It is an arithmetic number, because the mean of its divisors is an integer number (33002727822).

Almost surely, 2^121010002003 is an apocalyptic number.

121010002003 is a deficient number, since it is larger than the sum of its proper divisors (11000909285).

121010002003 is a wasteful number, since it uses less digits than its factorization.

121010002003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11000909284.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 121010002003 its reverse (300200010121), we get a palindrome (421210012124).

The spelling of 121010002003 in words is "one hundred twenty-one billion, ten million, two thousand, three".