312133303231 has 8 divisors (see below), whose sum is σ = 332404459344. Its totient is φ = 292074410880.

The previous prime is 312133303199. The next prime is 312133303243. The reversal of 312133303231 is 132303331213.

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 312133303231 - 2⁵ = 312133303199 is a prime.

It is a super-2 number, since 2×312133303231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312133303196 and 312133303205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312133303291) 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, 53062905 + ... + 53068786.

It is an arithmetic number, because the mean of its divisors is an integer number (41550557418).

Almost surely, 2^312133303231 is an apocalyptic number.

312133303231 is a deficient number, since it is larger than the sum of its proper divisors (20271156113).

312133303231 is a wasteful number, since it uses less digits than its factorization.

312133303231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106131881.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 312133303231 its reverse (132303331213), we get a palindrome (444436634444).

The spelling of 312133303231 in words is "three hundred twelve billion, one hundred thirty-three million, three hundred three thousand, two hundred thirty-one".