20003571361730 has 32 divisors (see below), whose sum is σ = 39282211042560. Its totient is φ = 7273568373120.

The previous prime is 20003571361723. The next prime is 20003571361759. The reversal of 20003571361730 is 3716317530002.

It is a happy number.

20003571361730 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3960659 + ... + 7462838.

It is an arithmetic number, because the mean of its divisors is an integer number (1227569095080).

Almost surely, 2^{20003571361730} is an apocalyptic number.

20003571361730 is a deficient number, since it is larger than the sum of its proper divisors (19278639680830).

20003571361730 is a wasteful number, since it uses less digits than its factorization.

20003571361730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11439434.

The product of its (nonzero) digits is 79380, while the sum is 38.

Adding to 20003571361730 its reverse (3716317530002), we get a palindrome (23719888891732).

The spelling of 20003571361730 in words is "twenty trillion, three billion, five hundred seventy-one million, three hundred sixty-one thousand, seven hundred thirty".