20929046101 has 2 divisors, whose sum is σ = 20929046102. Its totient is φ = 20929046100.

The previous prime is 20929046077. The next prime is 20929046111. The reversal of 20929046101 is 10164092902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14039880100 + 6889166001 = 118490^2 + 83001^2 .

It is a cyclic number.

It is not a de Polignac number, because 20929046101 - 2¹¹ = 20929044053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20929046111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10464523050 + 10464523051.

It is an arithmetic number, because the mean of its divisors is an integer number (10464523051).

Almost surely, 2^20929046101 is an apocalyptic number.

It is an amenable number.

20929046101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20929046101 is an equidigital number, since it uses as much as digits as its factorization.

20929046101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 20929046101 in words is "twenty billion, nine hundred twenty-nine million, forty-six thousand, one hundred one".