1313453111 has 4 divisors (see below), whose sum is σ = 1370559792. Its totient is φ = 1256346432.

The previous prime is 1313453101. The next prime is 1313453129. The reversal of 1313453111 is 1113543131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1113543131 = 29 ⋅38398039.

It is a cyclic number.

It is not a de Polignac number, because 1313453111 - 2¹⁰ = 1313452087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 57106657 = 1313453111 / (1 + 3 + 1 + 3 + 4 + 5 + 3 + 1 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313453101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28553306 + ... + 28553351.

It is an arithmetic number, because the mean of its divisors is an integer number (342639948).

Almost surely, 2^1313453111 is an apocalyptic number.

1313453111 is a deficient number, since it is larger than the sum of its proper divisors (57106681).

1313453111 is an equidigital number, since it uses as much as digits as its factorization.

1313453111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57106680.

The product of its digits is 540, while the sum is 23.

The square root of 1313453111 is about 36241.5936597716. The cubic root of 1313453111 is about 1095.1447473768.

Adding to 1313453111 its reverse (1113543131), we get a palindrome (2426996242).

The spelling of 1313453111 in words is "one billion, three hundred thirteen million, four hundred fifty-three thousand, one hundred eleven".