202011000019949 has 2 divisors, whose sum is σ = 202011000019950. Its totient is φ = 202011000019948.

The previous prime is 202011000019937. The next prime is 202011000020051. The reversal of 202011000019949 is 949910000110202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172488349444324 + 29522650575625 = 13133482^2 + 5433475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202011000019949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202011000039949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101005500009974 + 101005500009975.

It is an arithmetic number, because the mean of its divisors is an integer number (101005500009975).

Almost surely, 2^{202011000019949} is an apocalyptic number.

It is an amenable number.

202011000019949 is a deficient number, since it is larger than the sum of its proper divisors (1).

202011000019949 is an equidigital number, since it uses as much as digits as its factorization.

202011000019949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 202011000019949 in words is "two hundred two trillion, eleven billion, nineteen thousand, nine hundred forty-nine".