1310123131111 has 8 divisors (see below), whose sum is σ = 1328095980224. Its totient is φ = 1292150983680.

The previous prime is 1310123131087. The next prime is 1310123131127. The reversal of 1310123131111 is 1111313210131.

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 1310123131111 - 2⁷ = 1310123130983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310123131181) 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, 4395655 + ... + 4684231.

It is an arithmetic number, because the mean of its divisors is an integer number (166011997528).

Almost surely, 2^{1310123131111} is an apocalyptic number.

1310123131111 is a deficient number, since it is larger than the sum of its proper divisors (17972849113).

1310123131111 is an equidigital number, since it uses as much as digits as its factorization.

1310123131111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350841.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 1310123131111 its reverse (1111313210131), we get a palindrome (2421436341242).

The spelling of 1310123131111 in words is "one trillion, three hundred ten billion, one hundred twenty-three million, one hundred thirty-one thousand, one hundred eleven".