71300444431 has 4 divisors (see below), whose sum is σ = 72508926600. Its totient is φ = 70091962264.

The previous prime is 71300444419. The next prime is 71300444437. The reversal of 71300444431 is 13444400317.

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 71300444431 - 2⁵ = 71300444399 is a prime.

It is a super-2 number, since 2×71300444431² (a number of 23 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 = 71300444393 and 71300444402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71300444437) 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, 604240996 + ... + 604241113.

It is an arithmetic number, because the mean of its divisors is an integer number (18127231650).

Almost surely, 2^71300444431 is an apocalyptic number.

71300444431 is a deficient number, since it is larger than the sum of its proper divisors (1208482169).

71300444431 is a wasteful number, since it uses less digits than its factorization.

71300444431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208482168.

The product of its (nonzero) digits is 16128, while the sum is 31.

Adding to 71300444431 its reverse (13444400317), we get a palindrome (84744844748).

The spelling of 71300444431 in words is "seventy-one billion, three hundred million, four hundred forty-four thousand, four hundred thirty-one".