20211749083 has 2 divisors, whose sum is σ = 20211749084. Its totient is φ = 20211749082.

The previous prime is 20211749069. The next prime is 20211749087. The reversal of 20211749083 is 38094711202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20211749083 - 2¹³ = 20211740891 is a prime.

It is not a weakly prime, because it can be changed into another prime (20211749087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105874541 + 10105874542.

It is an arithmetic number, because the mean of its divisors is an integer number (10105874542).

Almost surely, 2^20211749083 is an apocalyptic number.

20211749083 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211749083 is an equidigital number, since it uses as much as digits as its factorization.

20211749083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 20211749083 in words is "twenty billion, two hundred eleven million, seven hundred forty-nine thousand, eighty-three".