23542220511243 has 64 divisors (see below), whose sum is σ = 40349247206400. Its totient is φ = 13287835503360.

The previous prime is 23542220511233. The next prime is 23542220511281. The reversal of 23542220511243 is 34211502224532.

23542220511243 is a `hidden beast` number, since 2 + 3 + 5 + 422 + 205 + 1 + 1 + 24 + 3 = 666.

It is not a de Polignac number, because 23542220511243 - 2⁵ = 23542220511211 is a prime.

It is a super-2 number, since 2×23542220511243² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23542220511198 and 23542220511207.

It is not an unprimeable number, because it can be changed into a prime (23542220511233) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15612505 + ... + 17053877.

It is an arithmetic number, because the mean of its divisors is an integer number (630456987600).

Almost surely, 2^{23542220511243} is an apocalyptic number.

23542220511243 is a deficient number, since it is larger than the sum of its proper divisors (16807026695157).

23542220511243 is a wasteful number, since it uses less digits than its factorization.

23542220511243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442449 (or 1442443 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 23542220511243 its reverse (34211502224532), we get a palindrome (57753722735775).

The spelling of 23542220511243 in words is "twenty-three trillion, five hundred forty-two billion, two hundred twenty million, five hundred eleven thousand, two hundred forty-three".