23343512311021 has 12 divisors (see below), whose sum is σ = 27434643340188. Its totient is φ = 19802449320192.

The previous prime is 23343512310961. The next prime is 23343512311043. The reversal of 23343512311021 is 12011321534332.

It can be written as a sum of positive squares in 2 ways, for example, as 6684551702500 + 16658960608521 = 2585450^2 + 4081539^2 .

It is not a de Polignac number, because 23343512311021 - 2⁷ = 23343512310893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23343512311421) 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 11 ways as a sum of consecutive naturals, for example, 2455656126 + ... + 2455665631.

It is an arithmetic number, because the mean of its divisors is an integer number (2286220278349).

Almost surely, 2^{23343512311021} is an apocalyptic number.

It is an amenable number.

23343512311021 is a deficient number, since it is larger than the sum of its proper divisors (4091131029167).

23343512311021 is an equidigital number, since it uses as much as digits as its factorization.

23343512311021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4911321868 (or 4911321861 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 23343512311021 its reverse (12011321534332), we get a palindrome (35354833845353).

The spelling of 23343512311021 in words is "twenty-three trillion, three hundred forty-three billion, five hundred twelve million, three hundred eleven thousand, twenty-one".