1303113111 has 4 divisors (see below), whose sum is σ = 1737484152. Its totient is φ = 868742072.

The previous prime is 1303113109. The next prime is 1303113131. The reversal of 1303113111 is 1113113031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1113113031 = 3 ⋅371037677.

It is a cyclic number.

It is not a de Polignac number, because 1303113111 - 2¹ = 1303113109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303113131) 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, 217185516 + ... + 217185521.

It is an arithmetic number, because the mean of its divisors is an integer number (434371038).

Almost surely, 2^1303113111 is an apocalyptic number.

1303113111 is a deficient number, since it is larger than the sum of its proper divisors (434371041).

1303113111 is an equidigital number, since it uses as much as digits as its factorization.

1303113111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434371040.

The product of its (nonzero) digits is 27, while the sum is 15.

The square root of 1303113111 is about 36098.6580221481. The cubic root of 1303113111 is about 1092.2633750334.

Adding to 1303113111 its reverse (1113113031), we get a palindrome (2416226142).

The spelling of 1303113111 in words is "one billion, three hundred three million, one hundred thirteen thousand, one hundred eleven".