31344342231221 has 8 divisors (see below), whose sum is σ = 32227321193088. Its totient is φ = 30467005308000.

The previous prime is 31344342231187. The next prime is 31344342231259. The reversal of 31344342231221 is 12213224344313.

It is a happy number.

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 31344342231221 - 2¹⁴ = 31344342214837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31344842231221) 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, 1410498395 + ... + 1410520616.

It is an arithmetic number, because the mean of its divisors is an integer number (4028415149136).

Almost surely, 2^{31344342231221} is an apocalyptic number.

It is an amenable number.

31344342231221 is a deficient number, since it is larger than the sum of its proper divisors (882978961867).

31344342231221 is a wasteful number, since it uses less digits than its factorization.

31344342231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821019323.

The product of its digits is 82944, while the sum is 35.

Adding to 31344342231221 its reverse (12213224344313), we get a palindrome (43557566575534).

The spelling of 31344342231221 in words is "thirty-one trillion, three hundred forty-four billion, three hundred forty-two million, two hundred thirty-one thousand, two hundred twenty-one".