23143443034440 has 64 divisors (see below), whose sum is σ = 69677412226560. Its totient is φ = 6149621864960.

The previous prime is 23143443034421. The next prime is 23143443034451. The reversal of 23143443034440 is 4443034434132.

It is a super-2 number, since 2×23143443034440² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343137144 + ... + 343204583.

It is an arithmetic number, because the mean of its divisors is an integer number (1088709566040).

Almost surely, 2^{23143443034440} is an apocalyptic number.

23143443034440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23143443034440 is an abundant number, since it is smaller than the sum of its proper divisors (46533969192120).

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

23143443034440 is a wasteful number, since it uses less digits than its factorization.

23143443034440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686342022 (or 686342018 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 39.

Adding to 23143443034440 its reverse (4443034434132), we get a palindrome (27586477468572).

The spelling of 23143443034440 in words is "twenty-three trillion, one hundred forty-three billion, four hundred forty-three million, thirty-four thousand, four hundred forty".