31221030311341 has 8 divisors (see below), whose sum is σ = 33650366633240. Its totient is φ = 28795653790272.

The previous prime is 31221030311321. The next prime is 31221030311357. The reversal of 31221030311341 is 14311303012213.

It can be written as a sum of positive squares in 4 ways, for example, as 2616225375625 + 28604804935716 = 1617475^2 + 5348346^2 .

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 31221030311341 - 2²⁹ = 31220493440429 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 (31221030311321) 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, 989933826 + ... + 989965363.

It is an arithmetic number, because the mean of its divisors is an integer number (4206295829155).

Almost surely, 2^{31221030311341} is an apocalyptic number.

It is an amenable number.

31221030311341 is a deficient number, since it is larger than the sum of its proper divisors (2429336321899).

31221030311341 is a wasteful number, since it uses less digits than its factorization.

31221030311341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979900415.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 31221030311341 its reverse (14311303012213), we get a palindrome (45532333323554).

The spelling of 31221030311341 in words is "thirty-one trillion, two hundred twenty-one billion, thirty million, three hundred eleven thousand, three hundred forty-one".