1312120000123 has 8 divisors (see below), whose sum is σ = 1389350657520. Its totient is φ = 1234894579200.

The previous prime is 1312120000099. The next prime is 1312120000199. The reversal of 1312120000123 is 3210000212131.

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

It is a de Polignac number, because none of the positive numbers 2^k-1312120000123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312120000097 and 1312120000106.

It is not an unprimeable number, because it can be changed into a prime (1312120000223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787278 + ... + 1801123.

It is an arithmetic number, because the mean of its divisors is an integer number (173668832190).

Almost surely, 2^{1312120000123} is an apocalyptic number.

1312120000123 is a deficient number, since it is larger than the sum of its proper divisors (77230657397).

1312120000123 is a wasteful number, since it uses less digits than its factorization.

1312120000123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2618237.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1312120000123 its reverse (3210000212131), we get a palindrome (4522120212254).

The spelling of 1312120000123 in words is "one trillion, three hundred twelve billion, one hundred twenty million, one hundred twenty-three", and thus it is an aban number.