201243052420311 has 64 divisors (see below), whose sum is σ = 308468886336000. Its totient is φ = 115416738662400.

The previous prime is 201243052420297. The next prime is 201243052420321. The reversal of 201243052420311 is 113024250342102.

It is a happy number.

It is not a de Polignac number, because 201243052420311 - 2⁶ = 201243052420247 is a prime.

It is a super-2 number, since 2×201243052420311² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201243052420321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2132917165 + ... + 2133011513.

It is an arithmetic number, because the mean of its divisors is an integer number (4819826349000).

Almost surely, 2^{201243052420311} is an apocalyptic number.

201243052420311 is a deficient number, since it is larger than the sum of its proper divisors (107225833915689).

201243052420311 is a wasteful number, since it uses less digits than its factorization.

201243052420311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98160.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 201243052420311 in words is "two hundred one trillion, two hundred forty-three billion, fifty-two million, four hundred twenty thousand, three hundred eleven".