42343311503 has 2 divisors, whose sum is σ = 42343311504. Its totient is φ = 42343311502.

The previous prime is 42343311389. The next prime is 42343311509. The reversal of 42343311503 is 30511334324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42343311503 - 2¹⁰ = 42343310479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42343311509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21171655751 + 21171655752.

It is an arithmetic number, because the mean of its divisors is an integer number (21171655752).

Almost surely, 2^42343311503 is an apocalyptic number.

42343311503 is a deficient number, since it is larger than the sum of its proper divisors (1).

42343311503 is an equidigital number, since it uses as much as digits as its factorization.

42343311503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 42343311503 its reverse (30511334324), we get a palindrome (72854645827).

The spelling of 42343311503 in words is "forty-two billion, three hundred forty-three million, three hundred eleven thousand, five hundred three".