103121200021001 has 4 divisors (see below), whose sum is σ = 103121221969104. Its totient is φ = 103121178072900.

The previous prime is 103121200020989. The next prime is 103121200021039. The reversal of 103121200021001 is 100120002121301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103121200021001 - 2¹⁴ = 103121200004617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103121200021061) 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, 753515 + ... + 14380896.

It is an arithmetic number, because the mean of its divisors is an integer number (25780305492276).

Almost surely, 2^{103121200021001} is an apocalyptic number.

It is an amenable number.

103121200021001 is a deficient number, since it is larger than the sum of its proper divisors (21948103).

103121200021001 is an equidigital number, since it uses as much as digits as its factorization.

103121200021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21948102.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 103121200021001 its reverse (100120002121301), we get a palindrome (203241202142302).

The spelling of 103121200021001 in words is "one hundred three trillion, one hundred twenty-one billion, two hundred million, twenty-one thousand, one".