312123321110033 has 4 divisors (see below), whose sum is σ = 319736085039588. Its totient is φ = 304510557180480.

The previous prime is 312123321109931. The next prime is 312123321110057. The reversal of 312123321110033 is 330011123321213.

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

It can be written as a sum of positive squares in 2 ways, for example, as 94388861144449 + 217734459965584 = 9715393^2 + 14755828^2 .

It is a cyclic number.

It is not a de Polignac number, because 312123321110033 - 2⁸ = 312123321109777 is a prime.

It is a super-2 number, since 2×312123321110033² (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 = 312123321109984 and 312123321110011.

It is not an unprimeable number, because it can be changed into a prime (312123321110063) 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, 3806381964716 + ... + 3806381964797.

It is an arithmetic number, because the mean of its divisors is an integer number (79934021259897).

Almost surely, 2^{312123321110033} is an apocalyptic number.

It is an amenable number.

312123321110033 is a deficient number, since it is larger than the sum of its proper divisors (7612763929555).

312123321110033 is an equidigital number, since it uses as much as digits as its factorization.

312123321110033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7612763929554.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 312123321110033 its reverse (330011123321213), we get a palindrome (642134444431246).

The spelling of 312123321110033 in words is "three hundred twelve trillion, one hundred twenty-three billion, three hundred twenty-one million, one hundred ten thousand, thirty-three".