31042433013321 has 8 divisors (see below), whose sum is σ = 43568327036320. Its totient is φ = 19605747166272.

The previous prime is 31042433013299. The next prime is 31042433013331. The reversal of 31042433013321 is 12331033424013.

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

It is not a de Polignac number, because 31042433013321 - 2⁵ = 31042433013289 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 (31042433013331) 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, 272302043920 + ... + 272302044033.

It is an arithmetic number, because the mean of its divisors is an integer number (5446040879540).

Almost surely, 2^{31042433013321} is an apocalyptic number.

It is an amenable number.

31042433013321 is a deficient number, since it is larger than the sum of its proper divisors (12525894022999).

31042433013321 is a wasteful number, since it uses less digits than its factorization.

31042433013321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544604087975.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 31042433013321 its reverse (12331033424013), we get a palindrome (43373466437334).

The spelling of 31042433013321 in words is "thirty-one trillion, forty-two billion, four hundred thirty-three million, thirteen thousand, three hundred twenty-one".