10121321320103 has 8 divisors (see below), whose sum is σ = 12247649328672. Its totient is φ = 8165099552256.

The previous prime is 10121321320057. The next prime is 10121321320183. The reversal of 10121321320103 is 30102312312101.

It is a happy number.

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 10121321320103 - 2¹⁰ = 10121321319079 is a prime.

It is a super-2 number, since 2×10121321320103² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121321320183) 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, 42526560050 + ... + 42526560287.

It is an arithmetic number, because the mean of its divisors is an integer number (1530956166084).

Almost surely, 2^{10121321320103} is an apocalyptic number.

10121321320103 is a deficient number, since it is larger than the sum of its proper divisors (2126328008569).

10121321320103 is an equidigital number, since it uses as much as digits as its factorization.

10121321320103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85053120361.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 10121321320103 its reverse (30102312312101), we get a palindrome (40223633632204).

The spelling of 10121321320103 in words is "ten trillion, one hundred twenty-one billion, three hundred twenty-one million, three hundred twenty thousand, one hundred three".