10001202121003 has 4 divisors (see below), whose sum is σ = 10003278356280. Its totient is φ = 9999125885728.

The previous prime is 10001202120961. The next prime is 10001202121039. The reversal of 10001202121003 is 30012120210001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10001202121003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10001202122003) 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, 1038110413 + ... + 1038120046.

It is an arithmetic number, because the mean of its divisors is an integer number (2500819589070).

Almost surely, 2^{10001202121003} is an apocalyptic number.

10001202121003 is a deficient number, since it is larger than the sum of its proper divisors (2076235277).

10001202121003 is an equidigital number, since it uses as much as digits as its factorization.

10001202121003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076235276.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10001202121003 its reverse (30012120210001), we get a palindrome (40013322331004).

The spelling of 10001202121003 in words is "ten trillion, one billion, two hundred two million, one hundred twenty-one thousand, three".