201201944213437 has 2 divisors, whose sum is σ = 201201944213438. Its totient is φ = 201201944213436.

The previous prime is 201201944213411. The next prime is 201201944213453. The reversal of 201201944213437 is 734312449102102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171673436061241 + 29528508152196 = 13102421^2 + 5434014^2 .

It is a cyclic number.

It is not a de Polignac number, because 201201944213437 - 2¹⁵ = 201201944180669 is a prime.

It is a super-3 number, since 3×201201944213437³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 201201944213393 and 201201944213402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201201944213477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100600972106718 + 100600972106719.

It is an arithmetic number, because the mean of its divisors is an integer number (100600972106719).

Almost surely, 2^{201201944213437} is an apocalyptic number.

It is an amenable number.

201201944213437 is a deficient number, since it is larger than the sum of its proper divisors (1).

201201944213437 is an equidigital number, since it uses as much as digits as its factorization.

201201944213437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 201201944213437 in words is "two hundred one trillion, two hundred one billion, nine hundred forty-four million, two hundred thirteen thousand, four hundred thirty-seven".