20013123703601 has 32 divisors (see below), whose sum is σ = 23273387907840. Its totient is φ = 16853818060800.

The previous prime is 20013123703579. The next prime is 20013123703603. The reversal of 20013123703601 is 10630732131002.

It is not a de Polignac number, because 20013123703601 - 2²⁶ = 20013056594737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20013123703603) 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 31 ways as a sum of consecutive naturals, for example, 1945093865 + ... + 1945104153.

It is an arithmetic number, because the mean of its divisors is an integer number (727293372120).

Almost surely, 2^{20013123703601} is an apocalyptic number.

It is an amenable number.

20013123703601 is a deficient number, since it is larger than the sum of its proper divisors (3260264204239).

20013123703601 is a wasteful number, since it uses less digits than its factorization.

20013123703601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15065.

The product of its (nonzero) digits is 4536, while the sum is 29.

Adding to 20013123703601 its reverse (10630732131002), we get a palindrome (30643855834603).

The spelling of 20013123703601 in words is "twenty trillion, thirteen billion, one hundred twenty-three million, seven hundred three thousand, six hundred one".