1312453111 has 4 divisors (see below), whose sum is σ = 1313866800. Its totient is φ = 1311039424.

The previous prime is 1312453097. The next prime is 1312453157. The reversal of 1312453111 is 1113542131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1113542131 = 13 ⋅85657087.

It is a cyclic number.

It is not a de Polignac number, because 1312453111 - 2¹⁹ = 1311928823 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 (1312453211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705451 + ... + 707308.

It is an arithmetic number, because the mean of its divisors is an integer number (328466700).

Almost surely, 2^1312453111 is an apocalyptic number.

1312453111 is a deficient number, since it is larger than the sum of its proper divisors (1413689).

1312453111 is an equidigital number, since it uses as much as digits as its factorization.

1312453111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413688.

The product of its digits is 360, while the sum is 22.

The square root of 1312453111 is about 36227.7947300136. The cubic root of 1312453111 is about 1094.8667466406.

Adding to 1312453111 its reverse (1113542131), we get a palindrome (2425995242).

The spelling of 1312453111 in words is "one billion, three hundred twelve million, four hundred fifty-three thousand, one hundred eleven".