11234313531 has 24 divisors (see below), whose sum is σ = 18608859360. Its totient is φ = 6397687296.

The previous prime is 11234313511. The next prime is 11234313539. The reversal of 11234313531 is 13531343211.

11234313531 is a `hidden beast` number, since 1 + 123 + 4 + 3 + 1 + 3 + 531 = 666.

It is not a de Polignac number, because 11234313531 - 2⁹ = 11234313019 is a prime.

It is a super-2 number, since 2×11234313531² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11234313495 and 11234313504.

It is not an unprimeable number, because it can be changed into a prime (11234313539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285846 + ... + 322763.

It is an arithmetic number, because the mean of its divisors is an integer number (775369140).

Almost surely, 2^11234313531 is an apocalyptic number.

11234313531 is a deficient number, since it is larger than the sum of its proper divisors (7374545829).

11234313531 is a wasteful number, since it uses less digits than its factorization.

11234313531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608915 (or 608912 counting only the distinct ones).

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

Adding to 11234313531 its reverse (13531343211), we get a palindrome (24765656742).

The spelling of 11234313531 in words is "eleven billion, two hundred thirty-four million, three hundred thirteen thousand, five hundred thirty-one".