20543140256333 has 2 divisors, whose sum is σ = 20543140256334. Its totient is φ = 20543140256332.

The previous prime is 20543140256297. The next prime is 20543140256341. The reversal of 20543140256333 is 33365204134502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19803407810404 + 739732445929 = 4450102^2 + 860077^2 .

It is a cyclic number.

It is not a de Polignac number, because 20543140256333 - 2²⁶ = 20543073147469 is a prime.

It is a super-2 number, since 2×20543140256333² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20543140256833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10271570128166 + 10271570128167.

It is an arithmetic number, because the mean of its divisors is an integer number (10271570128167).

Almost surely, 2^{20543140256333} is an apocalyptic number.

It is an amenable number.

20543140256333 is a deficient number, since it is larger than the sum of its proper divisors (1).

20543140256333 is an equidigital number, since it uses as much as digits as its factorization.

20543140256333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 41.

The spelling of 20543140256333 in words is "twenty trillion, five hundred forty-three billion, one hundred forty million, two hundred fifty-six thousand, three hundred thirty-three".