143243120040 has 32 divisors (see below), whose sum is σ = 429729360480. Its totient is φ = 38198165312.

The previous prime is 143243120021. The next prime is 143243120047. The reversal of 143243120040 is 40021342341.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (143243120047) 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, 596846214 + ... + 596846453.

It is an arithmetic number, because the mean of its divisors is an integer number (13429042515).

Almost surely, 2^143243120040 is an apocalyptic number.

143243120040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143243120040 is an abundant number, since it is smaller than the sum of its proper divisors (286486240440).

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

143243120040 is a wasteful number, since it uses less digits than its factorization.

143243120040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193692681 (or 1193692677 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 143243120040 its reverse (40021342341), we get a palindrome (183264462381).

The spelling of 143243120040 in words is "one hundred forty-three billion, two hundred forty-three million, one hundred twenty thousand, forty".