126322505263 has 4 divisors (see below), whose sum is σ = 126324916960. Its totient is φ = 126320093568.

The previous prime is 126322505261. The next prime is 126322505291. The reversal of 126322505263 is 362505223621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126322505263 - 2¹ = 126322505261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126322505261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1125495 + ... + 1232632.

It is an arithmetic number, because the mean of its divisors is an integer number (31581229240).

Almost surely, 2^126322505263 is an apocalyptic number.

126322505263 is a deficient number, since it is larger than the sum of its proper divisors (2411697).

126322505263 is an equidigital number, since it uses as much as digits as its factorization.

126322505263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411696.

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 126322505263 its reverse (362505223621), we get a palindrome (488827728884).

The spelling of 126322505263 in words is "one hundred twenty-six billion, three hundred twenty-two million, five hundred five thousand, two hundred sixty-three".