101128847791 has 2 divisors, whose sum is σ = 101128847792. Its totient is φ = 101128847790.

The previous prime is 101128847779. The next prime is 101128847837. The reversal of 101128847791 is 197748821101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101128847791 - 2¹⁹ = 101128323503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101128847711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50564423895 + 50564423896.

It is an arithmetic number, because the mean of its divisors is an integer number (50564423896).

Almost surely, 2^101128847791 is an apocalyptic number.

101128847791 is a deficient number, since it is larger than the sum of its proper divisors (1).

101128847791 is an equidigital number, since it uses as much as digits as its factorization.

101128847791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 49.

The spelling of 101128847791 in words is "one hundred one billion, one hundred twenty-eight million, eight hundred forty-seven thousand, seven hundred ninety-one".