23531155304 has 8 divisors (see below), whose sum is σ = 44120916210. Its totient is φ = 11765577648.

The previous prime is 23531155259. The next prime is 23531155309. The reversal of 23531155304 is 40355113532.

It can be written as a sum of positive squares in only one way, i.e., 23195899204 + 335256100 = 152302^2 + 18310^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (23531155309) 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 as a sum of consecutive naturals, namely, 1470697199 + ... + 1470697214.

Almost surely, 2^23531155304 is an apocalyptic number.

It is an amenable number.

23531155304 is a deficient number, since it is larger than the sum of its proper divisors (20589760906).

23531155304 is a wasteful number, since it uses less digits than its factorization.

23531155304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2941394419 (or 2941394415 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 23531155304 its reverse (40355113532), we get a palindrome (63886268836).

The spelling of 23531155304 in words is "twenty-three billion, five hundred thirty-one million, one hundred fifty-five thousand, three hundred four".