31141124324221 has 8 divisors (see below), whose sum is σ = 32215116184920. Its totient is φ = 30067143129408.

The previous prime is 31141124324209. The next prime is 31141124324237. The reversal of 31141124324221 is 12242342114113.

It can be written as a sum of positive squares in 4 ways, for example, as 10733191584025 + 20407932740196 = 3276155^2 + 4517514^2 .

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 31141124324221 - 2²⁷ = 31140990106493 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 (31141124024221) 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, 3516655 + ... + 8639971.

It is an arithmetic number, because the mean of its divisors is an integer number (4026889523115).

Almost surely, 2^{31141124324221} is an apocalyptic number.

It is an amenable number.

31141124324221 is a deficient number, since it is larger than the sum of its proper divisors (1073991860699).

31141124324221 is a wasteful number, since it uses less digits than its factorization.

31141124324221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5332943.

The product of its digits is 9216, while the sum is 31.

Adding to 31141124324221 its reverse (12242342114113), we get a palindrome (43383466438334).

The spelling of 31141124324221 in words is "thirty-one trillion, one hundred forty-one billion, one hundred twenty-four million, three hundred twenty-four thousand, two hundred twenty-one".