9321143144431 has 4 divisors (see below), whose sum is σ = 9322455434112. Its totient is φ = 9319830854752.

The previous prime is 9321143144399. The next prime is 9321143144471. The reversal of 9321143144431 is 1344413411239.

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 9321143144431 - 2⁵ = 9321143144399 is a prime.

It is a super-2 number, since 2×9321143144431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9321143144471) 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, 656134186 + ... + 656148391.

It is an arithmetic number, because the mean of its divisors is an integer number (2330613858528).

Almost surely, 2^{9321143144431} is an apocalyptic number.

9321143144431 is a deficient number, since it is larger than the sum of its proper divisors (1312289681).

9321143144431 is a wasteful number, since it uses less digits than its factorization.

9321143144431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312289680.

The product of its digits is 124416, while the sum is 40.

The spelling of 9321143144431 in words is "nine trillion, three hundred twenty-one billion, one hundred forty-three million, one hundred forty-four thousand, four hundred thirty-one".