2134806231571 has 4 divisors (see below), whose sum is σ = 2299022095552. Its totient is φ = 1970590367592.

The previous prime is 2134806231559. The next prime is 2134806231577. The reversal of 2134806231571 is 1751326084312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2134806231571 - 2¹³ = 2134806223379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2134806231577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82107931971 + ... + 82107931996.

It is an arithmetic number, because the mean of its divisors is an integer number (574755523888).

Almost surely, 2^{2134806231571} is an apocalyptic number.

2134806231571 is a deficient number, since it is larger than the sum of its proper divisors (164215863981).

2134806231571 is a wasteful number, since it uses less digits than its factorization.

2134806231571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164215863980.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 2134806231571 in words is "two trillion, one hundred thirty-four billion, eight hundred six million, two hundred thirty-one thousand, five hundred seventy-one".