10002121003 has 8 divisors (see below), whose sum is σ = 12103407072. Its totient is φ = 8068937856.

The previous prime is 10002120983. The next prime is 10002121007. The reversal of 10002121003 is 30012120001.

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

It is a de Polignac number, because none of the positive numbers 2^k-10002121003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10002121007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42025600 + ... + 42025837.

It is an arithmetic number, because the mean of its divisors is an integer number (1512925884).

Almost surely, 2^10002121003 is an apocalyptic number.

10002121003 is a deficient number, since it is larger than the sum of its proper divisors (2101286069).

10002121003 is an equidigital number, since it uses as much as digits as its factorization.

10002121003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84051461.

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

Adding to 10002121003 its reverse (30012120001), we get a palindrome (40014241004).

The spelling of 10002121003 in words is "ten billion, two million, one hundred twenty-one thousand, three".