312120003200123 has 8 divisors (see below), whose sum is σ = 314473369938000. Its totient is φ = 309773547966240.

The previous prime is 312120003200081. The next prime is 312120003200147. The reversal of 312120003200123 is 321002300021213.

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 312120003200123 - 2⁸ = 312120003199867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312120003200095 and 312120003200104.

It is not an unprimeable number, because it can be changed into a prime (312120008200123) 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, 1727785340 + ... + 1727965977.

It is an arithmetic number, because the mean of its divisors is an integer number (39309171242250).

Almost surely, 2^{312120003200123} is an apocalyptic number.

312120003200123 is a deficient number, since it is larger than the sum of its proper divisors (2353366737877).

312120003200123 is a wasteful number, since it uses less digits than its factorization.

312120003200123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3455751997.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 312120003200123 its reverse (321002300021213), we get a palindrome (633122303221336).

The spelling of 312120003200123 in words is "three hundred twelve trillion, one hundred twenty billion, three million, two hundred thousand, one hundred twenty-three".