2171131149533 has 8 divisors (see below), whose sum is σ = 2172346548480. Its totient is φ = 2169916004880.

The previous prime is 2171131149511. The next prime is 2171131149571. The reversal of 2171131149533 is 3359411311712.

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

It is a cyclic number.

It is not a de Polignac number, because 2171131149533 - 2¹⁸ = 2171130887389 is a prime.

It is a super-2 number, since 2×2171131149533² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171131149503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18512348 + ... + 18629258.

It is an arithmetic number, because the mean of its divisors is an integer number (271543318560).

Almost surely, 2^{2171131149533} is an apocalyptic number.

It is an amenable number.

2171131149533 is a deficient number, since it is larger than the sum of its proper divisors (1215398947).

2171131149533 is a wasteful number, since it uses less digits than its factorization.

2171131149533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127147.

The product of its digits is 68040, while the sum is 41.

The spelling of 2171131149533 in words is "two trillion, one hundred seventy-one billion, one hundred thirty-one million, one hundred forty-nine thousand, five hundred thirty-three".