871100021131231 has 8 divisors (see below), whose sum is σ = 871412628270080. Its totient is φ = 870787468551672.

The previous prime is 871100021131141. The next prime is 871100021131259. The reversal of 871100021131231 is 132131120001178.

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 871100021131231 - 2²⁹ = 871099484260319 is a prime.

It is a super-2 number, since 2×871100021131231² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 871100021131193 and 871100021131202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871100021131261) 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, 18311566 + ... + 45579748.

It is an arithmetic number, because the mean of its divisors is an integer number (108926578533760).

Almost surely, 2^{871100021131231} is an apocalyptic number.

871100021131231 is a deficient number, since it is larger than the sum of its proper divisors (312607138849).

871100021131231 is a wasteful number, since it uses less digits than its factorization.

871100021131231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27279645.

The product of its (nonzero) digits is 2016, while the sum is 31.

The spelling of 871100021131231 in words is "eight hundred seventy-one trillion, one hundred billion, twenty-one million, one hundred thirty-one thousand, two hundred thirty-one".