201001234431 has 4 divisors (see below), whose sum is σ = 268001645912. Its totient is φ = 134000822952.

The previous prime is 201001234429. The next prime is 201001234433. The reversal of 201001234431 is 134432100102.

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

It is an interprime number because it is at equal distance from previous prime (201001234429) and next prime (201001234433).

It is not a de Polignac number, because 201001234431 - 2¹ = 201001234429 is a prime.

It is a super-2 number, since 2×201001234431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201001234398 and 201001234407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201001234433) 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, 33500205736 + ... + 33500205741.

It is an arithmetic number, because the mean of its divisors is an integer number (67000411478).

Almost surely, 2^201001234431 is an apocalyptic number.

201001234431 is a deficient number, since it is larger than the sum of its proper divisors (67000411481).

201001234431 is an equidigital number, since it uses as much as digits as its factorization.

201001234431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67000411480.

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

Adding to 201001234431 its reverse (134432100102), we get a palindrome (335433334533).

The spelling of 201001234431 in words is "two hundred one billion, one million, two hundred thirty-four thousand, four hundred thirty-one".