1311113023 has 16 divisors (see below), whose sum is σ = 1452638880. Its totient is φ = 1173427200.

The previous prime is 1311112967. The next prime is 1311113029. The reversal of 1311113023 is 3203111131.

It is not a de Polignac number, because 1311113023 - 2⁹ = 1311112511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1311112988 and 1311113006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311113029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233161 + ... + 238717.

It is an arithmetic number, because the mean of its divisors is an integer number (90789930).

Almost surely, 2^1311113023 is an apocalyptic number.

1311113023 is a deficient number, since it is larger than the sum of its proper divisors (141525857).

1311113023 is a wasteful number, since it uses less digits than its factorization.

1311113023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5898.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1311113023 is about 36209.2947045368. The cubic root of 1311113023 is about 1094.4939796873.

Adding to 1311113023 its reverse (3203111131), we get a palindrome (4514224154).

The spelling of 1311113023 in words is "one billion, three hundred eleven million, one hundred thirteen thousand, twenty-three".