23212643205361 has 4 divisors (see below), whose sum is σ = 23212724737392. Its totient is φ = 23212561673332.

The previous prime is 23212643205343. The next prime is 23212643205377. The reversal of 23212643205361 is 16350234621232.

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 23212643205361 - 2³¹ = 23210495721713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23212643205331) 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, 40337455 + ... + 40908868.

It is an arithmetic number, because the mean of its divisors is an integer number (5803181184348).

Almost surely, 2^{23212643205361} is an apocalyptic number.

It is an amenable number.

23212643205361 is a deficient number, since it is larger than the sum of its proper divisors (81532031).

23212643205361 is an equidigital number, since it uses as much as digits as its factorization.

23212643205361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81532030.

The product of its (nonzero) digits is 311040, while the sum is 40.

Adding to 23212643205361 its reverse (16350234621232), we get a palindrome (39562877826593).

The spelling of 23212643205361 in words is "twenty-three trillion, two hundred twelve billion, six hundred forty-three million, two hundred five thousand, three hundred sixty-one".