12311113 has 2 divisors, whose sum is σ = 12311114. Its totient is φ = 12311112.

The previous prime is 12311093. The next prime is 12311119. The reversal of 12311113 is 31111321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12027024 + 284089 = 3468^2 + 533^2 .

It is a cyclic number.

It is not a de Polignac number, because 12311113 - 2¹³ = 12302921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12311093 and 12311102.

It is not a weakly prime, because it can be changed into another prime (12311119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155556 + 6155557.

It is an arithmetic number, because the mean of its divisors is an integer number (6155557).

Almost surely, 2^12311113 is an apocalyptic number.

It is an amenable number.

12311113 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311113 is an equidigital number, since it uses as much as digits as its factorization.

12311113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18, while the sum is 13.

The square root of 12311113 is about 3508.7195670216. The cubic root of 12311113 is about 230.9045225509.

Adding to 12311113 its reverse (31111321), we get a palindrome (43422434).

It can be divided in two parts, 123 and 11113, that added together give a square (11236 = 106²).

The spelling of 12311113 in words is "twelve million, three hundred eleven thousand, one hundred thirteen".