211001199953 has 2 divisors, whose sum is σ = 211001199954. Its totient is φ = 211001199952.

The previous prime is 211001199949. The next prime is 211001199967. The reversal of 211001199953 is 359991100112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203322533569 + 7678666384 = 450913^2 + 87628^2 .

It is a cyclic number.

It is not a de Polignac number, because 211001199953 - 2² = 211001199949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211001199953.

It is not a weakly prime, because it can be changed into another prime (211001199923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105500599976 + 105500599977.

It is an arithmetic number, because the mean of its divisors is an integer number (105500599977).

Almost surely, 2^211001199953 is an apocalyptic number.

It is an amenable number.

211001199953 is a deficient number, since it is larger than the sum of its proper divisors (1).

211001199953 is an equidigital number, since it uses as much as digits as its factorization.

211001199953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21870, while the sum is 41.

The spelling of 211001199953 in words is "two hundred eleven billion, one million, one hundred ninety-nine thousand, nine hundred fifty-three".