10121121202103 has 4 divisors (see below), whose sum is σ = 10447608982848. Its totient is φ = 9794633421360.

The previous prime is 10121121202063. The next prime is 10121121202109. The reversal of 10121121202103 is 30120212112101.

It is a happy number.

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 10121121202103 - 2⁸ = 10121121201847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121121202109) 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, 163243890326 + ... + 163243890387.

It is an arithmetic number, because the mean of its divisors is an integer number (2611902245712).

Almost surely, 2^{10121121202103} is an apocalyptic number.

10121121202103 is a deficient number, since it is larger than the sum of its proper divisors (326487780745).

10121121202103 is an equidigital number, since it uses as much as digits as its factorization.

10121121202103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326487780744.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 10121121202103 its reverse (30120212112101), we get a palindrome (40241333314204).

The spelling of 10121121202103 in words is "ten trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred two thousand, one hundred three".