312120302122031 has 8 divisors (see below), whose sum is σ = 339594809288784. Its totient is φ = 285140831120640.

The previous prime is 312120302121967. The next prime is 312120302122037. The reversal of 312120302122031 is 130221203021213.

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

It is not a de Polignac number, because 312120302122031 - 2⁶ = 312120302121967 is a prime.

It is a super-2 number, since 2×312120302122031² (a number of 30 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 = 312120302121988 and 312120302122006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312120302122037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123759040025 + ... + 123759042546.

It is an arithmetic number, because the mean of its divisors is an integer number (42449351161098).

Almost surely, 2^{312120302122031} is an apocalyptic number.

312120302122031 is a deficient number, since it is larger than the sum of its proper divisors (27474507166753).

312120302122031 is a wasteful number, since it uses less digits than its factorization.

312120302122031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247518082681.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 312120302122031 its reverse (130221203021213), we get a palindrome (442341505143244).

The spelling of 312120302122031 in words is "three hundred twelve trillion, one hundred twenty billion, three hundred two million, one hundred twenty-two thousand, thirty-one".