182121120213 has 4 divisors (see below), whose sum is σ = 242828160288. Its totient is φ = 121414080140.

The previous prime is 182121120193. The next prime is 182121120281. The reversal of 182121120213 is 312021121281.

It is a happy number.

182121120213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 182121120213 - 2¹³ = 182121112021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (182121125213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30353520033 + ... + 30353520038.

It is an arithmetic number, because the mean of its divisors is an integer number (60707040072).

Almost surely, 2^182121120213 is an apocalyptic number.

It is an amenable number.

182121120213 is a deficient number, since it is larger than the sum of its proper divisors (60707040075).

182121120213 is an equidigital number, since it uses as much as digits as its factorization.

182121120213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60707040074.

The product of its (nonzero) digits is 384, while the sum is 24.

Adding to 182121120213 its reverse (312021121281), we get a palindrome (494142241494).

The spelling of 182121120213 in words is "one hundred eighty-two billion, one hundred twenty-one million, one hundred twenty thousand, two hundred thirteen".