201001131431 has 16 divisors (see below), whose sum is σ = 208850510880. Its totient is φ = 193314401280.

The previous prime is 201001131403. The next prime is 201001131449. The reversal of 201001131431 is 134131100102.

It is a cyclic number.

It is not a de Polignac number, because 201001131431 - 2¹⁸ = 201000869287 is a prime.

It is a super-2 number, since 2×201001131431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201001131631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 813341 + ... + 1031273.

It is an arithmetic number, because the mean of its divisors is an integer number (13053156930).

Almost surely, 2^201001131431 is an apocalyptic number.

201001131431 is a deficient number, since it is larger than the sum of its proper divisors (7849379449).

201001131431 is a wasteful number, since it uses less digits than its factorization.

201001131431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218306.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 201001131431 its reverse (134131100102), we get a palindrome (335132231533).

The spelling of 201001131431 in words is "two hundred one billion, one million, one hundred thirty-one thousand, four hundred thirty-one".