143123045440 has 28 divisors (see below), whose sum is σ = 340811752716. Its totient is φ = 57249218048.

The previous prime is 143123045389. The next prime is 143123045501. The reversal of 143123045440 is 44540321341.

It can be written as a sum of positive squares in 2 ways, for example, as 40359202816 + 102763842624 = 200896^2 + 320568^2 .

It is a super-2 number, since 2×143123045440² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223629439 + ... + 223630078.

Almost surely, 2^143123045440 is an apocalyptic number.

143123045440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143123045440 is an abundant number, since it is smaller than the sum of its proper divisors (197688707276).

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

143123045440 is an equidigital number, since it uses as much as digits as its factorization.

143123045440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447259534 (or 447259524 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 143123045440 its reverse (44540321341), we get a palindrome (187663366781).

The spelling of 143123045440 in words is "one hundred forty-three billion, one hundred twenty-three million, forty-five thousand, four hundred forty".