101100200120261 has 2 divisors, whose sum is σ = 101100200120262. Its totient is φ = 101100200120260.

The previous prime is 101100200120233. The next prime is 101100200120281. The reversal of 101100200120261 is 162021002001101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87203006445025 + 13897193675236 = 9338255^2 + 3727894^2 .

It is a cyclic number.

It is not a de Polignac number, because 101100200120261 - 2¹⁸ = 101100199858117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101100200120281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50550100060130 + 50550100060131.

It is an arithmetic number, because the mean of its divisors is an integer number (50550100060131).

Almost surely, 2^{101100200120261} is an apocalyptic number.

It is an amenable number.

101100200120261 is a deficient number, since it is larger than the sum of its proper divisors (1).

101100200120261 is an equidigital number, since it uses as much as digits as its factorization.

101100200120261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 101100200120261 its reverse (162021002001101), we get a palindrome (263121202121362).

The spelling of 101100200120261 in words is "one hundred one trillion, one hundred billion, two hundred million, one hundred twenty thousand, two hundred sixty-one".