23153134220 has 24 divisors (see below), whose sum is σ = 48630289344. Its totient is φ = 9259595136.

The previous prime is 23153134157. The next prime is 23153134223. The reversal of 23153134220 is 2243135132.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23153134220.

It is not an unprimeable number, because it can be changed into a prime (23153134223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14072 + ... + 215648.

It is an arithmetic number, because the mean of its divisors is an integer number (2026262056).

Almost surely, 2^23153134220 is an apocalyptic number.

23153134220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23153134220 is an abundant number, since it is smaller than the sum of its proper divisors (25477155124).

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

23153134220 is a wasteful number, since it uses less digits than its factorization.

23153134220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207329 (or 207327 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 23153134220 its reverse (2243135132), we get a palindrome (25396269352).

The spelling of 23153134220 in words is "twenty-three billion, one hundred fifty-three million, one hundred thirty-four thousand, two hundred twenty".