71125101431 has 4 divisors (see below), whose sum is σ = 71128386000. Its totient is φ = 71121816864.

The previous prime is 71125101419. The next prime is 71125101469. The reversal of 71125101431 is 13410152117.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13410152117 = 2153 ⋅6228589.

It is a cyclic number.

It is not a de Polignac number, because 71125101431 - 2²² = 71120907127 is a prime.

It is a super-2 number, since 2×71125101431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71125101431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71125101401) 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, 1609586 + ... + 1653183.

It is an arithmetic number, because the mean of its divisors is an integer number (17782096500).

Almost surely, 2^71125101431 is an apocalyptic number.

71125101431 is a deficient number, since it is larger than the sum of its proper divisors (3284569).

71125101431 is a wasteful number, since it uses less digits than its factorization.

71125101431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3284568.

The product of its (nonzero) digits is 840, while the sum is 26.

Adding to 71125101431 its reverse (13410152117), we get a palindrome (84535253548).

The spelling of 71125101431 in words is "seventy-one billion, one hundred twenty-five million, one hundred one thousand, four hundred thirty-one".