1312111112141 has 2 divisors, whose sum is σ = 1312111112142. Its totient is φ = 1312111112140.

The previous prime is 1312111112131. The next prime is 1312111112189. The reversal of 1312111112141 is 1412111112131.

It is a m-pointer prime, because the next prime (1312111112189) can be obtained adding 1312111112141 to its product of digits (48).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 737114970916 + 574996141225 = 858554^2 + 758285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312111112141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312111112131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656055556070 + 656055556071.

It is an arithmetic number, because the mean of its divisors is an integer number (656055556071).

Almost surely, 2^{1312111112141} is an apocalyptic number.

It is an amenable number.

1312111112141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312111112141 is an equidigital number, since it uses as much as digits as its factorization.

1312111112141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48, while the sum is 20.

Adding to 1312111112141 its reverse (1412111112131), we get a palindrome (2724222224272).

The spelling of 1312111112141 in words is "one trillion, three hundred twelve billion, one hundred eleven million, one hundred twelve thousand, one hundred forty-one".