23421043202213 has 4 divisors (see below), whose sum is σ = 24653729686560. Its totient is φ = 22188356717868.

The previous prime is 23421043202069. The next prime is 23421043202231. The reversal of 23421043202213 is 31220234012432.

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 23421043202213 - 2¹² = 23421043198117 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 (23421043204213) 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, 616343242145 + ... + 616343242182.

It is an arithmetic number, because the mean of its divisors is an integer number (6163432421640).

Almost surely, 2^{23421043202213} is an apocalyptic number.

It is an amenable number.

23421043202213 is a deficient number, since it is larger than the sum of its proper divisors (1232686484347).

23421043202213 is a wasteful number, since it uses less digits than its factorization.

23421043202213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232686484346.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 23421043202213 its reverse (31220234012432), we get a palindrome (54641277214645).

The spelling of 23421043202213 in words is "twenty-three trillion, four hundred twenty-one billion, forty-three million, two hundred two thousand, two hundred thirteen".