10021312123103 has 4 divisors (see below), whose sum is σ = 10021484579040. Its totient is φ = 10021139667168.

The previous prime is 10021312123013. The next prime is 10021312123127. The reversal of 10021312123103 is 30132121312001.

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 10021312123103 - 2¹⁰ = 10021312122079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021312123183) 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, 86140775 + ... + 86257032.

It is an arithmetic number, because the mean of its divisors is an integer number (2505371144760).

Almost surely, 2^{10021312123103} is an apocalyptic number.

10021312123103 is a deficient number, since it is larger than the sum of its proper divisors (172455937).

10021312123103 is an equidigital number, since it uses as much as digits as its factorization.

10021312123103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172455936.

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

Adding to 10021312123103 its reverse (30132121312001), we get a palindrome (40153433435104).

The spelling of 10021312123103 in words is "ten trillion, twenty-one billion, three hundred twelve million, one hundred twenty-three thousand, one hundred three".