20023001121103 has 32 divisors (see below), whose sum is σ = 21748787159040. Its totient is φ = 18361794769920.

The previous prime is 20023001121091. The next prime is 20023001121107. The reversal of 20023001121103 is 30112110032002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20023001121103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023001121107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282101803 + ... + 282172771.

It is an arithmetic number, because the mean of its divisors is an integer number (679649598720).

Almost surely, 2^{20023001121103} is an apocalyptic number.

20023001121103 is a deficient number, since it is larger than the sum of its proper divisors (1725786037937).

20023001121103 is a wasteful number, since it uses less digits than its factorization.

20023001121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72607.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20023001121103 its reverse (30112110032002), we get a palindrome (50135111153105).

The spelling of 20023001121103 in words is "twenty trillion, twenty-three billion, one million, one hundred twenty-one thousand, one hundred three".