20001002120103 has 8 divisors (see below), whose sum is σ = 26680241478400. Its totient is φ = 13327882087608.

The previous prime is 20001002120081. The next prime is 20001002120111. The reversal of 20001002120103 is 30102120010002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20001002120103 - 2²⁸ = 20000733684647 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 (20001002120303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1529823823 + ... + 1529836896.

It is an arithmetic number, because the mean of its divisors is an integer number (3335030184800).

Almost surely, 2^{20001002120103} is an apocalyptic number.

20001002120103 is a deficient number, since it is larger than the sum of its proper divisors (6679239358297).

20001002120103 is a wasteful number, since it uses less digits than its factorization.

20001002120103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3059662901.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20001002120103 its reverse (30102120010002), we get a palindrome (50103122130105).

The spelling of 20001002120103 in words is "twenty trillion, one billion, two million, one hundred twenty thousand, one hundred three".