201044403031 has 4 divisors (see below), whose sum is σ = 201233889864. Its totient is φ = 200854916200.

The previous prime is 201044402957. The next prime is 201044403037. The reversal of 201044403031 is 130304440102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130304440102 = 2 ⋅65152220051.

It is a cyclic number.

It is not a de Polignac number, because 201044403031 - 2¹⁷ = 201044271959 is a prime.

It is a super-2 number, since 2×201044403031² (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 = 201044402993 and 201044403011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201044403037) 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, 94741825 + ... + 94743946.

It is an arithmetic number, because the mean of its divisors is an integer number (50308472466).

Almost surely, 2^201044403031 is an apocalyptic number.

201044403031 is a deficient number, since it is larger than the sum of its proper divisors (189486833).

201044403031 is a wasteful number, since it uses less digits than its factorization.

201044403031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189486832.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 201044403031 its reverse (130304440102), we get a palindrome (331348843133).

The spelling of 201044403031 in words is "two hundred one billion, forty-four million, four hundred three thousand, thirty-one".