31213211224241 has 8 divisors (see below), whose sum is σ = 31264419251520. Its totient is φ = 31162025928528.

The previous prime is 31213211224207. The next prime is 31213211224291. The reversal of 31213211224241 is 14242211231213.

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 31213211224241 - 2¹⁰ = 31213211223217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31213211224291) 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, 2933306 + ... + 8427971.

It is an arithmetic number, because the mean of its divisors is an integer number (3908052406440).

Almost surely, 2^{31213211224241} is an apocalyptic number.

It is an amenable number.

31213211224241 is a deficient number, since it is larger than the sum of its proper divisors (51208027279).

31213211224241 is a wasteful number, since it uses less digits than its factorization.

31213211224241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11365783.

The product of its digits is 4608, while the sum is 29.

Adding to 31213211224241 its reverse (14242211231213), we get a palindrome (45455422455454).

The spelling of 31213211224241 in words is "thirty-one trillion, two hundred thirteen billion, two hundred eleven million, two hundred twenty-four thousand, two hundred forty-one".