121312012323 has 8 divisors (see below), whose sum is σ = 161752854208. Its totient is φ = 80872922664.

The previous prime is 121312012319. The next prime is 121312012373. The reversal of 121312012323 is 323210213121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121312012323 - 2² = 121312012319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121312012323.

It is not an unprimeable number, because it can be changed into a prime (121312012373) 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 7 ways as a sum of consecutive naturals, for example, 266965 + ... + 560262.

It is an arithmetic number, because the mean of its divisors is an integer number (20219106776).

Almost surely, 2^121312012323 is an apocalyptic number.

121312012323 is a deficient number, since it is larger than the sum of its proper divisors (40440841885).

121312012323 is an equidigital number, since it uses as much as digits as its factorization.

121312012323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876113.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121312012323 its reverse (323210213121), we get a palindrome (444522225444).

The spelling of 121312012323 in words is "one hundred twenty-one billion, three hundred twelve million, twelve thousand, three hundred twenty-three".