23143251232 has 48 divisors (see below), whose sum is σ = 45785507040. Its totient is φ = 11515327488.

The previous prime is 23143251227. The next prime is 23143251233. The reversal of 23143251232 is 23215234132.

It is a happy number.

It is a super-2 number, since 2×23143251232² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23143251232.

It is not an unprimeable number, because it can be changed into a prime (23143251233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6673563 + ... + 6677029.

It is an arithmetic number, because the mean of its divisors is an integer number (953864730).

Almost surely, 2^23143251232 is an apocalyptic number.

It is an amenable number.

23143251232 is a deficient number, since it is larger than the sum of its proper divisors (22642255808).

23143251232 is a wasteful number, since it uses less digits than its factorization.

23143251232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4433 (or 4425 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

Adding to 23143251232 its reverse (23215234132), we get a palindrome (46358485364).

The spelling of 23143251232 in words is "twenty-three billion, one hundred forty-three million, two hundred fifty-one thousand, two hundred thirty-two".