20116713223121 has 4 divisors (see below), whose sum is σ = 20133660750192. Its totient is φ = 20099765696052.

The previous prime is 20116713223091. The next prime is 20116713223127. The reversal of 20116713223121 is 12132231761102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20116713223121 - 2¹⁰ = 20116713222097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20116713223127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8473761755 + ... + 8473764128.

It is an arithmetic number, because the mean of its divisors is an integer number (5033415187548).

Almost surely, 2^{20116713223121} is an apocalyptic number.

It is an amenable number.

20116713223121 is a deficient number, since it is larger than the sum of its proper divisors (16947527071).

20116713223121 is a wasteful number, since it uses less digits than its factorization.

20116713223121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16947527070.

The product of its (nonzero) digits is 6048, while the sum is 32.

Adding to 20116713223121 its reverse (12132231761102), we get a palindrome (32248944984223).

The spelling of 20116713223121 in words is "twenty trillion, one hundred sixteen billion, seven hundred thirteen million, two hundred twenty-three thousand, one hundred twenty-one".