201348955909 has 2 divisors, whose sum is σ = 201348955910. Its totient is φ = 201348955908.

The previous prime is 201348955903. The next prime is 201348955921. The reversal of 201348955909 is 909559843102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131898259684 + 69450696225 = 363178^2 + 263535^2 .

It is a cyclic number.

It is not a de Polignac number, because 201348955909 - 2⁹ = 201348955397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201348955909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201348955903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100674477954 + 100674477955.

It is an arithmetic number, because the mean of its divisors is an integer number (100674477955).

Almost surely, 2^201348955909 is an apocalyptic number.

It is an amenable number.

201348955909 is a deficient number, since it is larger than the sum of its proper divisors (1).

201348955909 is an equidigital number, since it uses as much as digits as its factorization.

201348955909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3499200, while the sum is 55.

The spelling of 201348955909 in words is "two hundred one billion, three hundred forty-eight million, nine hundred fifty-five thousand, nine hundred nine".