1311230013123 has 8 divisors (see below), whose sum is σ = 1748333068288. Its totient is φ = 874140150024.

The previous prime is 1311230013113. The next prime is 1311230013127. The reversal of 1311230013123 is 3213100321131.

It is a happy number.

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

It is not a de Polignac number, because 1311230013123 - 2⁶ = 1311230013059 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 1311230013123.

It is not an unprimeable number, because it can be changed into a prime (1311230013127) 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, 3063715 + ... + 3465372.

It is an arithmetic number, because the mean of its divisors is an integer number (218541633536).

Almost surely, 2^{1311230013123} is an apocalyptic number.

1311230013123 is a deficient number, since it is larger than the sum of its proper divisors (437103055165).

1311230013123 is an equidigital number, since it uses as much as digits as its factorization.

1311230013123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6596033.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1311230013123 its reverse (3213100321131), we get a palindrome (4524330334254).

The spelling of 1311230013123 in words is "one trillion, three hundred eleven billion, two hundred thirty million, thirteen thousand, one hundred twenty-three".