312023123311 has 4 divisors (see below), whose sum is σ = 312691267512. Its totient is φ = 311354979112.

The previous prime is 312023123303. The next prime is 312023123317. The reversal of 312023123311 is 113321320213.

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 312023123311 - 2³ = 312023123303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312023123317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334071400 + ... + 334072333.

It is an arithmetic number, because the mean of its divisors is an integer number (78172816878).

Almost surely, 2^312023123311 is an apocalyptic number.

312023123311 is a deficient number, since it is larger than the sum of its proper divisors (668144201).

312023123311 is an equidigital number, since it uses as much as digits as its factorization.

312023123311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668144200.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 312023123311 its reverse (113321320213), we get a palindrome (425344443524).

It can be divided in two parts, 31202 and 3123311, that added together give a palindrome (3154513).

The spelling of 312023123311 in words is "three hundred twelve billion, twenty-three million, one hundred twenty-three thousand, three hundred eleven".