130203201100261 has 2 divisors, whose sum is σ = 130203201100262. Its totient is φ = 130203201100260.

The previous prime is 130203201100243. The next prime is 130203201100363. The reversal of 130203201100261 is 162001102302031.

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., 124091378816161 + 6111822284100 = 11139631^2 + 2472210^2 .

It is a cyclic number.

It is not a de Polignac number, because 130203201100261 - 2¹¹ = 130203201098213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130203201100211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65101600550130 + 65101600550131.

It is an arithmetic number, because the mean of its divisors is an integer number (65101600550131).

Almost surely, 2^{130203201100261} is an apocalyptic number.

It is an amenable number.

130203201100261 is a deficient number, since it is larger than the sum of its proper divisors (1).

130203201100261 is an equidigital number, since it uses as much as digits as its factorization.

130203201100261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 130203201100261 its reverse (162001102302031), we get a palindrome (292204303402292).

The spelling of 130203201100261 in words is "one hundred thirty trillion, two hundred three billion, two hundred one million, one hundred thousand, two hundred sixty-one".