201134424321 has 10 divisors (see below), whose sum is σ = 300460066082. Its totient is φ = 134089616160.

The previous prime is 201134424313. The next prime is 201134424329. The reversal of 201134424321 is 123424431102.

201134424321 is a `hidden beast` number, since 201 + 1 + 3 + 4 + 424 + 32 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (201134424313) and next prime (201134424329).

It can be written as a sum of positive squares in only one way, i.e., 113778710721 + 87355713600 = 337311^2 + 295560^2 .

It is not a de Polignac number, because 201134424321 - 2³ = 201134424313 is a prime.

It is a super-2 number, since 2×201134424321² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201134424329) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1241570440 + ... + 1241570601.

Almost surely, 2^201134424321 is an apocalyptic number.

It is an amenable number.

201134424321 is a deficient number, since it is larger than the sum of its proper divisors (99325641761).

201134424321 is an equidigital number, since it uses as much as digits as its factorization.

201134424321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2483141053 (or 2483141044 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 201134424321 its reverse (123424431102), we get a palindrome (324558855423).

The spelling of 201134424321 in words is "two hundred one billion, one hundred thirty-four million, four hundred twenty-four thousand, three hundred twenty-one".