312223233031123 has 4 divisors (see below), whose sum is σ = 312224074817760. Its totient is φ = 312222391244488.

The previous prime is 312223233031043. The next prime is 312223233031153. The reversal of 312223233031123 is 321130332322213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312223233031123 - 2²⁵ = 312223199476691 is a prime.

It is a super-2 number, since 2×312223233031123² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312223233031153) 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 3 ways as a sum of consecutive naturals, for example, 420336715 + ... + 421078852.

It is an arithmetic number, because the mean of its divisors is an integer number (78056018704440).

Almost surely, 2^{312223233031123} is an apocalyptic number.

312223233031123 is a deficient number, since it is larger than the sum of its proper divisors (841786637).

312223233031123 is an equidigital number, since it uses as much as digits as its factorization.

312223233031123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841786636.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 312223233031123 its reverse (321130332322213), we get a palindrome (633353565353336).

The spelling of 312223233031123 in words is "three hundred twelve trillion, two hundred twenty-three billion, two hundred thirty-three million, thirty-one thousand, one hundred twenty-three".