126228001243 has 2 divisors, whose sum is σ = 126228001244. Its totient is φ = 126228001242.

The previous prime is 126228001219. The next prime is 126228001267. The reversal of 126228001243 is 342100822621.

It is a balanced prime because it is at equal distance from previous prime (126228001219) and next prime (126228001267).

It is an emirp because it is prime and its reverse (342100822621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126228001243 is a prime.

It is not a weakly prime, because it can be changed into another prime (126228001043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63114000621 + 63114000622.

It is an arithmetic number, because the mean of its divisors is an integer number (63114000622).

Almost surely, 2^126228001243 is an apocalyptic number.

126228001243 is a deficient number, since it is larger than the sum of its proper divisors (1).

126228001243 is an equidigital number, since it uses as much as digits as its factorization.

126228001243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 126228001243 its reverse (342100822621), we get a palindrome (468328823864).

The spelling of 126228001243 in words is "one hundred twenty-six billion, two hundred twenty-eight million, one thousand, two hundred forty-three".