20157241170111 has 8 divisors (see below), whose sum is σ = 26931509080704. Its totient is φ = 13410567019800.

The previous prime is 20157241170109. The next prime is 20157241170113. The reversal of 20157241170111 is 11107114275102.

It is an interprime number because it is at equal distance from previous prime (20157241170109) and next prime (20157241170113).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20157241170111 - 2¹ = 20157241170109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20157241170113) 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 7 ways as a sum of consecutive naturals, for example, 6898438365 + ... + 6898441286.

It is an arithmetic number, because the mean of its divisors is an integer number (3366438635088).

Almost surely, 2^{20157241170111} is an apocalyptic number.

20157241170111 is a deficient number, since it is larger than the sum of its proper divisors (6774267910593).

20157241170111 is a wasteful number, since it uses less digits than its factorization.

20157241170111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13796880141.

The product of its (nonzero) digits is 3920, while the sum is 33.

The spelling of 20157241170111 in words is "twenty trillion, one hundred fifty-seven billion, two hundred forty-one million, one hundred seventy thousand, one hundred eleven".