42510321233 has 2 divisors, whose sum is σ = 42510321234. Its totient is φ = 42510321232.

The previous prime is 42510321197. The next prime is 42510321241. The reversal of 42510321233 is 33212301524.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41429752849 + 1080568384 = 203543^2 + 32872^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42510321233 is a prime.

It is a super-2 number, since 2×42510321233² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42510326233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21255160616 + 21255160617.

It is an arithmetic number, because the mean of its divisors is an integer number (21255160617).

Almost surely, 2^42510321233 is an apocalyptic number.

It is an amenable number.

42510321233 is a deficient number, since it is larger than the sum of its proper divisors (1).

42510321233 is an equidigital number, since it uses as much as digits as its factorization.

42510321233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 42510321233 its reverse (33212301524), we get a palindrome (75722622757).

The spelling of 42510321233 in words is "forty-two billion, five hundred ten million, three hundred twenty-one thousand, two hundred thirty-three".