11313123345 has 24 divisors (see below), whose sum is σ = 19625674536. Its totient is φ = 6028662528.

The previous prime is 11313123319. The next prime is 11313123359. The reversal of 11313123345 is 54332131311.

11313123345 is a `hidden beast` number, since 1 + 1 + 3 + 1 + 312 + 3 + 345 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 194686209 + 11118437136 = 13953^2 + 105444^2 .

It is not a de Polignac number, because 11313123345 - 2³¹ = 9165639697 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49044 + ... + 158213.

It is an arithmetic number, because the mean of its divisors is an integer number (817736439).

Almost surely, 2^11313123345 is an apocalyptic number.

11313123345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11313123345 is a deficient number, since it is larger than the sum of its proper divisors (8312551191).

11313123345 is a wasteful number, since it uses less digits than its factorization.

11313123345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208481 (or 208478 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

Adding to 11313123345 its reverse (54332131311), we get a palindrome (65645254656).

The spelling of 11313123345 in words is "eleven billion, three hundred thirteen million, one hundred twenty-three thousand, three hundred forty-five".