31201222320133 has 8 divisors (see below), whose sum is σ = 31236357020000. Its totient is φ = 31166106967728.

The previous prime is 31201222320113. The next prime is 31201222320139. The reversal of 31201222320133 is 33102322210213.

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 31201222320133 - 2⁹ = 31201222319621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31201222320098 and 31201222320107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31201222320139) 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, 1608483 + ... + 8061616.

It is an arithmetic number, because the mean of its divisors is an integer number (3904544627500).

Almost surely, 2^{31201222320133} is an apocalyptic number.

It is an amenable number.

31201222320133 is a deficient number, since it is larger than the sum of its proper divisors (35134699867).

31201222320133 is a wasteful number, since it uses less digits than its factorization.

31201222320133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9673731.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31201222320133 its reverse (33102322210213), we get a palindrome (64303544530346).

The spelling of 31201222320133 in words is "thirty-one trillion, two hundred one billion, two hundred twenty-two million, three hundred twenty thousand, one hundred thirty-three".