20013061732730 has 32 divisors (see below), whose sum is σ = 39467038373568. Its totient is φ = 7246243177600.

The previous prime is 20013061732721. The next prime is 20013061732757. The reversal of 20013061732730 is 3723716031002.

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, 390396956 + ... + 390448215.

It is an arithmetic number, because the mean of its divisors is an integer number (1233344949174).

Almost surely, 2^{20013061732730} is an apocalyptic number.

20013061732730 is a deficient number, since it is larger than the sum of its proper divisors (19453976640838).

20013061732730 is a wasteful number, since it uses less digits than its factorization.

20013061732730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780845422.

The product of its (nonzero) digits is 31752, while the sum is 35.

Adding to 20013061732730 its reverse (3723716031002), we get a palindrome (23736777763732).

The spelling of 20013061732730 in words is "twenty trillion, thirteen billion, sixty-one million, seven hundred thirty-two thousand, seven hundred thirty".