201302534431 has 4 divisors (see below), whose sum is σ = 205100695512. Its totient is φ = 197504373352.

The previous prime is 201302534393. The next prime is 201302534437. The reversal of 201302534431 is 134435203102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201302534431 is a prime.

It is a super-2 number, since 2×201302534431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201302534431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201302534437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1899080461 + ... + 1899080566.

It is an arithmetic number, because the mean of its divisors is an integer number (51275173878).

Almost surely, 2^201302534431 is an apocalyptic number.

201302534431 is a deficient number, since it is larger than the sum of its proper divisors (3798161081).

201302534431 is an equidigital number, since it uses as much as digits as its factorization.

201302534431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3798161080.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 201302534431 its reverse (134435203102), we get a palindrome (335737737533).

The spelling of 201302534431 in words is "two hundred one billion, three hundred two million, five hundred thirty-four thousand, four hundred thirty-one".