1311003323123 has 8 divisors (see below), whose sum is σ = 1413935192208.
Its totient is φ = 1208369376864.
The previous prime is 1311003323117. The next prime is 1311003323137. The reversal of 1311003323123 is 3213233001131.
Adding to 1311003323123 its reverse (3213233001131), we get a palindrome (4524236324254).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1311003323123 - 210 = 1311003322099 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1311003323153) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74471561 + ... + 74489162.
It is an arithmetic number, because the mean of its divisors is an integer number (176741899026).
Almost surely, 21311003323123 is an apocalyptic number.
1311003323123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
1311003323123 is a deficient number, since it is larger than the sum of its proper divisors (102931869085).
1311003323123 is a wasteful number, since it uses less digits than its factorization.
1311003323123 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 148961413.
The product of its (nonzero) digits is 972, while the sum is 23.
The spelling of 1311003323123 in words is "one trillion, three hundred eleven billion, three million, three hundred twenty-three thousand, one hundred twenty-three".