23512221452 has 24 divisors (see below), whose sum is σ = 41859417600. Its totient is φ = 11552536976.

The previous prime is 23512221401. The next prime is 23512221527. The reversal of 23512221452 is 25412221532.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667949 + ... + 702267.

It is an arithmetic number, because the mean of its divisors is an integer number (1744142400).

Almost surely, 2^23512221452 is an apocalyptic number.

It is an amenable number.

23512221452 is a deficient number, since it is larger than the sum of its proper divisors (18347196148).

23512221452 is a wasteful number, since it uses less digits than its factorization.

23512221452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37285 (or 37283 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

Adding to 23512221452 its reverse (25412221532), we get a palindrome (48924442984).

The spelling of 23512221452 in words is "twenty-three billion, five hundred twelve million, two hundred twenty-one thousand, four hundred fifty-two".