23213535144420 has 48 divisors (see below), whose sum is σ = 66224273855040. Its totient is φ = 6073478376576.

The previous prime is 23213535144409. The next prime is 23213535144421. The reversal of 23213535144420 is 2444153531232.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23213535144421) 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 15 ways as a sum of consecutive naturals, for example, 3649923730 + ... + 3649930089.

It is an arithmetic number, because the mean of its divisors is an integer number (1379672371980).

Almost surely, 2^{23213535144420} is an apocalyptic number.

23213535144420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23213535144420 is an abundant number, since it is smaller than the sum of its proper divisors (43010738710620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23213535144420 is a wasteful number, since it uses less digits than its factorization.

23213535144420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7299853884 (or 7299853882 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 39.

Adding to 23213535144420 its reverse (2444153531232), we get a palindrome (25657688675652).

The spelling of 23213535144420 in words is "twenty-three trillion, two hundred thirteen billion, five hundred thirty-five million, one hundred forty-four thousand, four hundred twenty".