120143312552543 has 6 divisors (see below), whose sum is σ = 139758547255056. Its totient is φ = 102979982187852.

The previous prime is 120143312552509. The next prime is 120143312552561. The reversal of 120143312552543 is 345255213341021.

It is not a de Polignac number, because 120143312552543 - 2¹⁸ = 120143312290399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120143312552543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120143312582543) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1225952168855 + ... + 1225952168952.

It is an arithmetic number, because the mean of its divisors is an integer number (23293091209176).

Almost surely, 2^{120143312552543} is an apocalyptic number.

120143312552543 is a deficient number, since it is larger than the sum of its proper divisors (19615234702513).

120143312552543 is an equidigital number, since it uses as much as digits as its factorization.

120143312552543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451904337821 (or 2451904337814 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 41.

Adding to 120143312552543 its reverse (345255213341021), we get a palindrome (465398525893564).

The spelling of 120143312552543 in words is "one hundred twenty trillion, one hundred forty-three billion, three hundred twelve million, five hundred fifty-two thousand, five hundred forty-three".