90101243348101 has 2 divisors, whose sum is σ = 90101243348102. Its totient is φ = 90101243348100.

The previous prime is 90101243348033. The next prime is 90101243348111. The reversal of 90101243348101 is 10184334210109.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53610292829025 + 36490950519076 = 7321905^2 + 6040774^2 .

It is an emirp because it is prime and its reverse (10184334210109) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90101243348101 - 2¹³ = 90101243339909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90101243348111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45050621674050 + 45050621674051.

It is an arithmetic number, because the mean of its divisors is an integer number (45050621674051).

Almost surely, 2^{90101243348101} is an apocalyptic number.

It is an amenable number.

90101243348101 is a deficient number, since it is larger than the sum of its proper divisors (1).

90101243348101 is an equidigital number, since it uses as much as digits as its factorization.

90101243348101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 90101243348101 in words is "ninety trillion, one hundred one billion, two hundred forty-three million, three hundred forty-eight thousand, one hundred one".