71231331001 has 8 divisors (see below), whose sum is σ = 73557126144. Its totient is φ = 68907286560.

The previous prime is 71231330987. The next prime is 71231331023. The reversal of 71231331001 is 10013313217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71231331001 - 2¹¹ = 71231328953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71231331901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354721 + ... + 517966.

It is an arithmetic number, because the mean of its divisors is an integer number (9194640768).

Almost surely, 2^71231331001 is an apocalyptic number.

It is an amenable number.

71231331001 is a deficient number, since it is larger than the sum of its proper divisors (2325795143).

71231331001 is a wasteful number, since it uses less digits than its factorization.

71231331001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875351.

The product of its (nonzero) digits is 378, while the sum is 22.

Adding to 71231331001 its reverse (10013313217), we get a palindrome (81244644218).

The spelling of 71231331001 in words is "seventy-one billion, two hundred thirty-one million, three hundred thirty-one thousand, one".