2321172255742 has 8 divisors (see below), whose sum is σ = 3533724926856. Its totient is φ = 1143263946792.

The previous prime is 2321172255697. The next prime is 2321172255761. The reversal of 2321172255742 is 2475522711232.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8661090373 + ... + 8661090640.

It is an arithmetic number, because the mean of its divisors is an integer number (441715615857).

Almost surely, 2^{2321172255742} is an apocalyptic number.

2321172255742 is a deficient number, since it is larger than the sum of its proper divisors (1212552671114).

2321172255742 is a wasteful number, since it uses less digits than its factorization.

2321172255742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17322181082.

The product of its digits is 470400, while the sum is 43.

Adding to 2321172255742 its reverse (2475522711232), we get a palindrome (4796694966974).

The spelling of 2321172255742 in words is "two trillion, three hundred twenty-one billion, one hundred seventy-two million, two hundred fifty-five thousand, seven hundred forty-two".