20711205124032 has 28 divisors (see below), whose sum is σ = 54798396891176. Its totient is φ = 6903735041280.

The previous prime is 20711205124019. The next prime is 20711205124067. The reversal of 20711205124032 is 23042150211702.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 53935429819 + ... + 53935430202.

Almost surely, 2^{20711205124032} is an apocalyptic number.

It is an amenable number.

20711205124032 is an abundant number, since it is smaller than the sum of its proper divisors (34087191767144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20711205124032 is a wasteful number, since it uses less digits than its factorization.

20711205124032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107870860036 (or 107870860026 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

Adding to 20711205124032 its reverse (23042150211702), we get a palindrome (43753355335734).

The spelling of 20711205124032 in words is "twenty trillion, seven hundred eleven billion, two hundred five million, one hundred twenty-four thousand, thirty-two".