201044430431 has 16 divisors (see below), whose sum is σ = 222273773568. Its totient is φ = 180679922400.

The previous prime is 201044430427. The next prime is 201044430449. The reversal of 201044430431 is 134034440102.

It is a cyclic number.

It is not a de Polignac number, because 201044430431 - 2² = 201044430427 is a prime.

It is a super-2 number, since 2×201044430431² (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 201044430431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201047430431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 744665 + ... + 978066.

It is an arithmetic number, because the mean of its divisors is an integer number (13892110848).

Almost surely, 2^201044430431 is an apocalyptic number.

201044430431 is a deficient number, since it is larger than the sum of its proper divisors (21229343137).

201044430431 is a wasteful number, since it uses less digits than its factorization.

201044430431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722982.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 201044430431 its reverse (134034440102), we get a palindrome (335078870533).

The spelling of 201044430431 in words is "two hundred one billion, forty-four million, four hundred thirty thousand, four hundred thirty-one".