185368023311 has 4 divisors (see below), whose sum is σ = 185852013312. Its totient is φ = 184884033312.

The previous prime is 185368023293. The next prime is 185368023317. The reversal of 185368023311 is 113320863581.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 185368023311 - 2¹⁴ = 185368006927 is a prime.

It is a super-2 number, since 2×185368023311² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185368023317) 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, 241994426 + ... + 241995191.

It is an arithmetic number, because the mean of its divisors is an integer number (46463003328).

Almost surely, 2^185368023311 is an apocalyptic number.

185368023311 is a deficient number, since it is larger than the sum of its proper divisors (483990001).

185368023311 is an equidigital number, since it uses as much as digits as its factorization.

185368023311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483990000.

The product of its (nonzero) digits is 103680, while the sum is 41.

Adding to 185368023311 its reverse (113320863581), we get a palindrome (298688886892).

The spelling of 185368023311 in words is "one hundred eighty-five billion, three hundred sixty-eight million, twenty-three thousand, three hundred eleven".