1543623242143 has 2 divisors, whose sum is σ = 1543623242144. Its totient is φ = 1543623242142.

The previous prime is 1543623242131. The next prime is 1543623242171. The reversal of 1543623242143 is 3412423263451.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1543623242143 is a prime.

It is a super-2 number, since 2×1543623242143² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1543623242096 and 1543623242105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1543623242113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771811621071 + 771811621072.

It is an arithmetic number, because the mean of its divisors is an integer number (771811621072).

Almost surely, 2^{1543623242143} is an apocalyptic number.

1543623242143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1543623242143 is an equidigital number, since it uses as much as digits as its factorization.

1543623242143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 40.

The spelling of 1543623242143 in words is "one trillion, five hundred forty-three billion, six hundred twenty-three million, two hundred forty-two thousand, one hundred forty-three".