2012153661223 has 4 divisors (see below), whose sum is σ = 2012798792160. Its totient is φ = 2011508530288.

The previous prime is 2012153661191. The next prime is 2012153661233. The reversal of 2012153661223 is 3221663512102.

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 2012153661223 - 2⁵ = 2012153661191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012153661233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322560790 + ... + 322567027.

It is an arithmetic number, because the mean of its divisors is an integer number (503199698040).

Almost surely, 2^{2012153661223} is an apocalyptic number.

2012153661223 is a deficient number, since it is larger than the sum of its proper divisors (645130937).

2012153661223 is an equidigital number, since it uses as much as digits as its factorization.

2012153661223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645130936.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 2012153661223 in words is "two trillion, twelve billion, one hundred fifty-three million, six hundred sixty-one thousand, two hundred twenty-three".