312031223131133 has 16 divisors (see below), whose sum is σ = 340432113868800. Its totient is φ = 283636070254080.

The previous prime is 312031223131127. The next prime is 312031223131157. The reversal of 312031223131133 is 331131322130213.

It is a cyclic number.

It is not a de Polignac number, because 312031223131133 - 2¹⁴ = 312031223114749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312031223131096 and 312031223131105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312031223181133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8349983273 + ... + 8350020641.

It is an arithmetic number, because the mean of its divisors is an integer number (21277007116800).

Almost surely, 2^{312031223131133} is an apocalyptic number.

It is an amenable number.

312031223131133 is a deficient number, since it is larger than the sum of its proper divisors (28400890737667).

312031223131133 is a wasteful number, since it uses less digits than its factorization.

312031223131133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93812.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 312031223131133 its reverse (331131322130213), we get a palindrome (643162545261346).

The spelling of 312031223131133 in words is "three hundred twelve trillion, thirty-one billion, two hundred twenty-three million, one hundred thirty-one thousand, one hundred thirty-three".