1213123101323 has 8 divisors (see below), whose sum is σ = 1409925154560. Its totient is φ = 1022195736360.

The previous prime is 1213123101319. The next prime is 1213123101353. The reversal of 1213123101323 is 3231013213121.

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 1213123101323 - 2² = 1213123101319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213123101313) 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, 1468671623 + ... + 1468672448.

It is an arithmetic number, because the mean of its divisors is an integer number (176240644320).

Almost surely, 2^{1213123101323} is an apocalyptic number.

1213123101323 is a deficient number, since it is larger than the sum of its proper divisors (196802053237).

1213123101323 is an equidigital number, since it uses as much as digits as its factorization.

1213123101323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2937344137.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1213123101323 its reverse (3231013213121), we get a palindrome (4444136314444).

The spelling of 1213123101323 in words is "one trillion, two hundred thirteen billion, one hundred twenty-three million, one hundred one thousand, three hundred twenty-three".