312323332031 has 4 divisors (see below), whose sum is σ = 314193531792. Its totient is φ = 310453132272.

The previous prime is 312323331997. The next prime is 312323332081. The reversal of 312323332031 is 130233323213.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130233323213 = 7 ⋅18604760459.

It is a cyclic number.

It is not a de Polignac number, because 312323332031 - 2²² = 312319137727 is a prime.

It is a super-2 number, since 2×312323332031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312323332081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 935099630 + ... + 935099963.

It is an arithmetic number, because the mean of its divisors is an integer number (78548382948).

Almost surely, 2^312323332031 is an apocalyptic number.

312323332031 is a deficient number, since it is larger than the sum of its proper divisors (1870199761).

312323332031 is a wasteful number, since it uses less digits than its factorization.

312323332031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870199760.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 312323332031 its reverse (130233323213), we get a palindrome (442556655244).

The spelling of 312323332031 in words is "three hundred twelve billion, three hundred twenty-three million, three hundred thirty-two thousand, thirty-one".