1313132111 has 4 divisors (see below), whose sum is σ = 1313464152. Its totient is φ = 1312800072.

The previous prime is 1313132087. The next prime is 1313132147. The reversal of 1313132111 is 1112313131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1313132111 - 2¹⁰ = 1313131087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313132111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313132011) 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, 160016 + ... + 168021.

It is an arithmetic number, because the mean of its divisors is an integer number (328366038).

Almost surely, 2^1313132111 is an apocalyptic number.

1313132111 is a deficient number, since it is larger than the sum of its proper divisors (332041).

1313132111 is an equidigital number, since it uses as much as digits as its factorization.

1313132111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332040.

The product of its digits is 54, while the sum is 17.

The square root of 1313132111 is about 36237.1647759589. The cubic root of 1313132111 is about 1095.0555245226.

Adding to 1313132111 its reverse (1112313131), we get a palindrome (2425445242).

The spelling of 1313132111 in words is "one billion, three hundred thirteen million, one hundred thirty-two thousand, one hundred eleven".