12123312120311 has 8 divisors (see below), whose sum is σ = 13876761623424. Its totient is φ = 10375249560120.

The previous prime is 12123312120263. The next prime is 12123312120329. The reversal of 12123312120311 is 11302121332121.

It is a happy number.

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 12123312120311 - 2¹⁰ = 12123312119287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123312120391) 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, 1346730905 + ... + 1346739906.

It is an arithmetic number, because the mean of its divisors is an integer number (1734595202928).

Almost surely, 2^{12123312120311} is an apocalyptic number.

12123312120311 is a deficient number, since it is larger than the sum of its proper divisors (1753449503113).

12123312120311 is an equidigital number, since it uses as much as digits as its factorization.

12123312120311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2693471461.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12123312120311 its reverse (11302121332121), we get a palindrome (23425433452432).

The spelling of 12123312120311 in words is "twelve trillion, one hundred twenty-three billion, three hundred twelve million, one hundred twenty thousand, three hundred eleven".