100042420040149 has 2 divisors, whose sum is σ = 100042420040150. Its totient is φ = 100042420040148.

The previous prime is 100042420040099. The next prime is 100042420040153. The reversal of 100042420040149 is 941040024240001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99994100087025 + 48319953124 = 9999705^2 + 219818^2 .

It is a cyclic number.

It is not a de Polignac number, because 100042420040149 - 2²⁷ = 100042285822421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100042420040149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100042420040449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50021210020074 + 50021210020075.

It is an arithmetic number, because the mean of its divisors is an integer number (50021210020075).

Almost surely, 2^{100042420040149} is an apocalyptic number.

It is an amenable number.

100042420040149 is a deficient number, since it is larger than the sum of its proper divisors (1).

100042420040149 is an equidigital number, since it uses as much as digits as its factorization.

100042420040149 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 100042420040149 in words is "one hundred trillion, forty-two billion, four hundred twenty million, forty thousand, one hundred forty-nine".