20830261231871 has 48 divisors (see below), whose sum is σ = 26198620908768. Its totient is φ = 16415736825600.

The previous prime is 20830261231853. The next prime is 20830261231919. The reversal of 20830261231871 is 17813216203802.

It is not a de Polignac number, because 20830261231871 - 2³⁰ = 20829187490047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20830261231811) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 347308916 + ... + 347368886.

It is an arithmetic number, because the mean of its divisors is an integer number (545804602266).

Almost surely, 2^{20830261231871} is an apocalyptic number.

20830261231871 is a deficient number, since it is larger than the sum of its proper divisors (5368359676897).

20830261231871 is a wasteful number, since it uses less digits than its factorization.

20830261231871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62152 (or 62145 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 20830261231871 in words is "twenty trillion, eight hundred thirty billion, two hundred sixty-one million, two hundred thirty-one thousand, eight hundred seventy-one".