1023233255543 has 2 divisors, whose sum is σ = 1023233255544. Its totient is φ = 1023233255542.

The previous prime is 1023233255521. The next prime is 1023233255647. The reversal of 1023233255543 is 3455523323201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1023233255543 - 2¹⁸ = 1023232993399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1023233255497 and 1023233255506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023233254543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511616627771 + 511616627772.

It is an arithmetic number, because the mean of its divisors is an integer number (511616627772).

Almost surely, 2^{1023233255543} is an apocalyptic number.

1023233255543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023233255543 is an equidigital number, since it uses as much as digits as its factorization.

1023233255543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 38.

Adding to 1023233255543 its reverse (3455523323201), we get a palindrome (4478756578744).

The spelling of 1023233255543 in words is "one trillion, twenty-three billion, two hundred thirty-three million, two hundred fifty-five thousand, five hundred forty-three".