71311020232 has 16 divisors (see below), whose sum is σ = 141573349260. Its totient is φ = 33558127104.

The previous prime is 71311020211. The next prime is 71311020251. The reversal of 71311020232 is 23202011317.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 63864365796 + 7446654436 = 252714^2 + 86294^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262172733 + ... + 262173004.

Almost surely, 2^71311020232 is an apocalyptic number.

It is an amenable number.

71311020232 is a deficient number, since it is larger than the sum of its proper divisors (70262329028).

71311020232 is a wasteful number, since it uses less digits than its factorization.

71311020232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524345760 (or 524345756 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 71311020232 its reverse (23202011317), we get a palindrome (94513031549).

The spelling of 71311020232 in words is "seventy-one billion, three hundred eleven million, twenty thousand, two hundred thirty-two".