1312322131111 has 16 divisors (see below), whose sum is σ = 1327864428000. Its totient is φ = 1296846028800.

The previous prime is 1312322131073. The next prime is 1312322131121. The reversal of 1312322131111 is 1111312232131.

It is a cyclic number.

It is not a de Polignac number, because 1312322131111 - 2¹⁵ = 1312322098343 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 (1312322131121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170849191 + ... + 170856871.

It is an arithmetic number, because the mean of its divisors is an integer number (82991526750).

Almost surely, 2^{1312322131111} is an apocalyptic number.

1312322131111 is a deficient number, since it is larger than the sum of its proper divisors (15542296889).

1312322131111 is a wasteful number, since it uses less digits than its factorization.

1312322131111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11730.

The product of its digits is 216, while the sum is 22.

Adding to 1312322131111 its reverse (1111312232131), we get a palindrome (2423634363242).

The spelling of 1312322131111 in words is "one trillion, three hundred twelve billion, three hundred twenty-two million, one hundred thirty-one thousand, one hundred eleven".