1223463101543 has 2 divisors, whose sum is σ = 1223463101544. Its totient is φ = 1223463101542.

The previous prime is 1223463101533. The next prime is 1223463101659. The reversal of 1223463101543 is 3451013643221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223463101543 - 2²² = 1223458907239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223463101533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611731550771 + 611731550772.

It is an arithmetic number, because the mean of its divisors is an integer number (611731550772).

Almost surely, 2^{1223463101543} is an apocalyptic number.

1223463101543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223463101543 is an equidigital number, since it uses as much as digits as its factorization.

1223463101543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 1223463101543 its reverse (3451013643221), we get a palindrome (4674476744764).

The spelling of 1223463101543 in words is "one trillion, two hundred twenty-three billion, four hundred sixty-three million, one hundred one thousand, five hundred forty-three".