201431001423 has 16 divisors (see below), whose sum is σ = 268923916800. Its totient is φ = 134112803136.

The previous prime is 201431001397. The next prime is 201431001427. The reversal of 201431001423 is 324100134102.

It is not a de Polignac number, because 201431001423 - 2¹⁶ = 201430935887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201431001423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201431001427) 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, 10712436 + ... + 10731222.

It is an arithmetic number, because the mean of its divisors is an integer number (16807744800).

Almost surely, 2^201431001423 is an apocalyptic number.

201431001423 is a deficient number, since it is larger than the sum of its proper divisors (67492915377).

201431001423 is a wasteful number, since it uses less digits than its factorization.

201431001423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23246.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 201431001423 its reverse (324100134102), we get a palindrome (525531135525).

The spelling of 201431001423 in words is "two hundred one billion, four hundred thirty-one million, one thousand, four hundred twenty-three".