71431230232 has 16 divisors (see below), whose sum is σ = 133942863600. Its totient is φ = 35713133280.

The previous prime is 71431230229. The next prime is 71431230257. The reversal of 71431230232 is 23203213417.

It is a self number, because there is not a number n which added to its sum of digits gives 71431230232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184932 + ... + 420787.

It is an arithmetic number, because the mean of its divisors is an integer number (8371428975).

Almost surely, 2^71431230232 is an apocalyptic number.

It is an amenable number.

71431230232 is a deficient number, since it is larger than the sum of its proper divisors (62511633368).

71431230232 is a wasteful number, since it uses less digits than its factorization.

71431230232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620466 (or 620462 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

Adding to 71431230232 its reverse (23203213417), we get a palindrome (94634443649).

The spelling of 71431230232 in words is "seventy-one billion, four hundred thirty-one million, two hundred thirty thousand, two hundred thirty-two".