20013123701737 has 16 divisors (see below), whose sum is σ = 21603651603840. Its totient is φ = 18482645567232.

The previous prime is 20013123701693. The next prime is 20013123701803. The reversal of 20013123701737 is 73710732131002.

It is a cyclic number.

It is not a de Polignac number, because 20013123701737 - 2⁷ = 20013123701609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20013123701696 and 20013123701705.

It is not an unprimeable number, because it can be changed into a prime (20013123701537) 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, 70803073 + ... + 71085169.

It is an arithmetic number, because the mean of its divisors is an integer number (1350228225240).

Almost surely, 2^{20013123701737} is an apocalyptic number.

It is an amenable number.

20013123701737 is a deficient number, since it is larger than the sum of its proper divisors (1590527902103).

20013123701737 is a wasteful number, since it uses less digits than its factorization.

20013123701737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388512.

The product of its (nonzero) digits is 37044, while the sum is 37.

Adding to 20013123701737 its reverse (73710732131002), we get a palindrome (93723855832739).

The spelling of 20013123701737 in words is "twenty trillion, thirteen billion, one hundred twenty-three million, seven hundred one thousand, seven hundred thirty-seven".