71242140312133 has 4 divisors (see below), whose sum is σ = 81419588928160. Its totient is φ = 61064691696108.

The previous prime is 71242140312073. The next prime is 71242140312137. The reversal of 71242140312133 is 33121304124217.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71242140312133 - 2²⁹ = 71241603441221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71242140312137) 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, 5088724308003 + ... + 5088724308016.

It is an arithmetic number, because the mean of its divisors is an integer number (20354897232040).

Almost surely, 2^{71242140312133} is an apocalyptic number.

It is an amenable number.

71242140312133 is a deficient number, since it is larger than the sum of its proper divisors (10177448616027).

71242140312133 is a wasteful number, since it uses less digits than its factorization.

71242140312133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10177448616026.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 71242140312133 in words is "seventy-one trillion, two hundred forty-two billion, one hundred forty million, three hundred twelve thousand, one hundred thirty-three".