1312303112111 has 16 divisors (see below), whose sum is σ = 1349293831200. Its totient is φ = 1275823546368.

The previous prime is 1312303112083. The next prime is 1312303112171. The reversal of 1312303112111 is 1112113032131.

It is a cyclic number.

It is not a de Polignac number, because 1312303112111 - 2⁶ = 1312303112047 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 (1312303112171) 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, 7774175 + ... + 7941183.

It is an arithmetic number, because the mean of its divisors is an integer number (84330864450).

Almost surely, 2^{1312303112111} is an apocalyptic number.

1312303112111 is a deficient number, since it is larger than the sum of its proper divisors (36990719089).

1312303112111 is a wasteful number, since it uses less digits than its factorization.

1312303112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168538.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1312303112111 its reverse (1112113032131), we get a palindrome (2424416144242).

The spelling of 1312303112111 in words is "one trillion, three hundred twelve billion, three hundred three million, one hundred twelve thousand, one hundred eleven".