11927683213 has 4 divisors (see below), whose sum is σ = 11928680028. Its totient is φ = 11926686400.

The previous prime is 11927683211. The next prime is 11927683217. The reversal of 11927683213 is 31238672911.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5924842729 + 6002840484 = 76973^2 + 77478^2 .

It is a cyclic number.

It is not a de Polignac number, because 11927683213 - 2¹ = 11927683211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11927683213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11927683211) 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, 480238 + ... + 504463.

It is an arithmetic number, because the mean of its divisors is an integer number (2982170007).

Almost surely, 2^11927683213 is an apocalyptic number.

It is an amenable number.

11927683213 is a deficient number, since it is larger than the sum of its proper divisors (996815).

11927683213 is an equidigital number, since it uses as much as digits as its factorization.

11927683213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996814.

The product of its digits is 108864, while the sum is 43.

The spelling of 11927683213 in words is "eleven billion, nine hundred twenty-seven million, six hundred eighty-three thousand, two hundred thirteen".