201956011 has 2 divisors, whose sum is σ = 201956012. Its totient is φ = 201956010.

The previous prime is 201955987. The next prime is 201956017. The reversal of 201956011 is 110659102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201956011 - 2¹³ = 201947819 is a prime.

It is not a weakly prime, because it can be changed into another prime (201956017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100978005 + 100978006.

It is an arithmetic number, because the mean of its divisors is an integer number (100978006).

Almost surely, 2^201956011 is an apocalyptic number.

201956011 is a deficient number, since it is larger than the sum of its proper divisors (1).

201956011 is an equidigital number, since it uses as much as digits as its factorization.

201956011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 201956011 is about 14211.1227916727. The cubic root of 201956011 is about 586.7038363516.

The spelling of 201956011 in words is "two hundred one million, nine hundred fifty-six thousand, eleven".