133813298871 has 12 divisors (see below), whose sum is σ = 220898144272. Its totient is φ = 76464742176.

The previous prime is 133813298867. The next prime is 133813298873. The reversal of 133813298871 is 178892318331.

It is a happy number.

133813298871 is a `hidden beast` number, since 1 + 338 + 13 + 298 + 8 + 7 + 1 = 666.

It is not a de Polignac number, because 133813298871 - 2² = 133813298867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133813298873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1062010246 + ... + 1062010371.

Almost surely, 2^133813298871 is an apocalyptic number.

133813298871 is a deficient number, since it is larger than the sum of its proper divisors (87084845401).

133813298871 is a wasteful number, since it uses less digits than its factorization.

133813298871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124020630 (or 2124020627 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The spelling of 133813298871 in words is "one hundred thirty-three billion, eight hundred thirteen million, two hundred ninety-eight thousand, eight hundred seventy-one".