20123000011003 has 16 divisors (see below), whose sum is σ = 21865739468800. Its totient is φ = 18448643125440.

The previous prime is 20123000010959. The next prime is 20123000011027. The reversal of 20123000011003 is 30011000032102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20123000011003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20123000011043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43777318 + ... + 44234596.

It is an arithmetic number, because the mean of its divisors is an integer number (1366608716800).

Almost surely, 2^{20123000011003} is an apocalyptic number.

20123000011003 is a deficient number, since it is larger than the sum of its proper divisors (1742739457797).

20123000011003 is a wasteful number, since it uses less digits than its factorization.

20123000011003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532042.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20123000011003 its reverse (30011000032102), we get a palindrome (50134000043105).

The spelling of 20123000011003 in words is "twenty trillion, one hundred twenty-three billion, eleven thousand, three".