143302244243261 has 2 divisors, whose sum is σ = 143302244243262. Its totient is φ = 143302244243260.

The previous prime is 143302244243233. The next prime is 143302244243287. The reversal of 143302244243261 is 162342442203341.

143302244243261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125146038023161 + 18156206220100 = 11186869^2 + 4261010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143302244243261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143302244243461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71651122121630 + 71651122121631.

It is an arithmetic number, because the mean of its divisors is an integer number (71651122121631).

Almost surely, 2^{143302244243261} is an apocalyptic number.

It is an amenable number.

143302244243261 is a deficient number, since it is larger than the sum of its proper divisors (1).

143302244243261 is an equidigital number, since it uses as much as digits as its factorization.

143302244243261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 41.

The spelling of 143302244243261 in words is "one hundred forty-three trillion, three hundred two billion, two hundred forty-four million, two hundred forty-three thousand, two hundred sixty-one".