71231903396 has 12 divisors (see below), whose sum is σ = 124657825152. Its totient is φ = 35615381928.

The previous prime is 71231903359. The next prime is 71231903489. The reversal of 71231903396 is 69330913217.

It is a happy number.

It is a super-2 number, since 2×71231903396² (a number of 23 digits) contains 22 as substring.

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, 274361 + ... + 466623.

It is an arithmetic number, because the mean of its divisors is an integer number (10388152096).

Almost surely, 2^71231903396 is an apocalyptic number.

It is an amenable number.

71231903396 is a deficient number, since it is larger than the sum of its proper divisors (53425921756).

71231903396 is a wasteful number, since it uses less digits than its factorization.

71231903396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284890 (or 284888 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 44.

The spelling of 71231903396 in words is "seventy-one billion, two hundred thirty-one million, nine hundred three thousand, three hundred ninety-six".