11500387323 has 16 divisors (see below), whose sum is σ = 15754371360. Its totient is φ = 7456824576.

The previous prime is 11500387319. The next prime is 11500387331. The reversal of 11500387323 is 32378300511.

It is not a de Polignac number, because 11500387323 - 2² = 11500387319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11500387823) 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, 289593 + ... + 326901.

It is an arithmetic number, because the mean of its divisors is an integer number (984648210).

Almost surely, 2^11500387323 is an apocalyptic number.

11500387323 is a deficient number, since it is larger than the sum of its proper divisors (4253984037).

11500387323 is a wasteful number, since it uses less digits than its factorization.

11500387323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40126.

The product of its (nonzero) digits is 15120, while the sum is 33.

Adding to 11500387323 its reverse (32378300511), we get a palindrome (43878687834).

The spelling of 11500387323 in words is "eleven billion, five hundred million, three hundred eighty-seven thousand, three hundred twenty-three".