100091476521961 has 2 divisors, whose sum is σ = 100091476521962. Its totient is φ = 100091476521960.

The previous prime is 100091476521941. The next prime is 100091476521973. The reversal of 100091476521961 is 169125674190001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99633716025561 + 457760496400 = 9981669^2 + 676580^2 .

It is a cyclic number.

It is not a de Polignac number, because 100091476521961 - 2⁴¹ = 97892453266409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100091476521899 and 100091476521908.

It is not a weakly prime, because it can be changed into another prime (100091476521931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50045738260980 + 50045738260981.

It is an arithmetic number, because the mean of its divisors is an integer number (50045738260981).

Almost surely, 2^{100091476521961} is an apocalyptic number.

It is an amenable number.

100091476521961 is a deficient number, since it is larger than the sum of its proper divisors (1).

100091476521961 is an equidigital number, since it uses as much as digits as its factorization.

100091476521961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 52.

The spelling of 100091476521961 in words is "one hundred trillion, ninety-one billion, four hundred seventy-six million, five hundred twenty-one thousand, nine hundred sixty-one".