242126156101 has 2 divisors, whose sum is σ = 242126156102. Its totient is φ = 242126156100.

The previous prime is 242126156093. The next prime is 242126156137. The reversal of 242126156101 is 101651621242.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158124727201 + 84001428900 = 397649^2 + 289830^2 .

It is a cyclic number.

It is not a de Polignac number, because 242126156101 - 2³ = 242126156093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242126159101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121063078050 + 121063078051.

It is an arithmetic number, because the mean of its divisors is an integer number (121063078051).

Almost surely, 2^242126156101 is an apocalyptic number.

It is an amenable number.

242126156101 is a deficient number, since it is larger than the sum of its proper divisors (1).

242126156101 is an equidigital number, since it uses as much as digits as its factorization.

242126156101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 31.

Adding to 242126156101 its reverse (101651621242), we get a palindrome (343777777343).

The spelling of 242126156101 in words is "two hundred forty-two billion, one hundred twenty-six million, one hundred fifty-six thousand, one hundred one".