126201306223 has 4 divisors (see below), whose sum is σ = 126545179360. Its totient is φ = 125857433088.

The previous prime is 126201306197. The next prime is 126201306239. The reversal of 126201306223 is 322603102621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126201306223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126201306191 and 126201306200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126201306263) 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, 171936018 + ... + 171936751.

It is an arithmetic number, because the mean of its divisors is an integer number (31636294840).

Almost surely, 2^126201306223 is an apocalyptic number.

126201306223 is a deficient number, since it is larger than the sum of its proper divisors (343873137).

126201306223 is an equidigital number, since it uses as much as digits as its factorization.

126201306223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343873136.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 126201306223 its reverse (322603102621), we get a palindrome (448804408844).

The spelling of 126201306223 in words is "one hundred twenty-six billion, two hundred one million, three hundred six thousand, two hundred twenty-three".