23305242340520 has 64 divisors (see below), whose sum is σ = 60365195066880. Its totient is φ = 7932044929536.

The previous prime is 23305242340511. The next prime is 23305242340537. The reversal of 23305242340520 is 2504324250332.

It is a super-2 number, since 2×23305242340520² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303731744 + ... + 303808463.

It is an arithmetic number, because the mean of its divisors is an integer number (943206172920).

Almost surely, 2^{23305242340520} is an apocalyptic number.

23305242340520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23305242340520 is an abundant number, since it is smaller than the sum of its proper divisors (37059952726360).

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

23305242340520 is a wasteful number, since it uses less digits than its factorization.

23305242340520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607540362 (or 607540358 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 35.

Adding to 23305242340520 its reverse (2504324250332), we get a palindrome (25809566590852).

The spelling of 23305242340520 in words is "twenty-three trillion, three hundred five billion, two hundred forty-two million, three hundred forty thousand, five hundred twenty".