201120103031 has 4 divisors (see below), whose sum is σ = 203665927200. Its totient is φ = 198574278864.

The previous prime is 201120103007. The next prime is 201120103033. The reversal of 201120103031 is 130301021102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201120103031 is a prime.

It is a super-2 number, since 2×201120103031² (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 = 201120102997 and 201120103015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201120103033) 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 3 ways as a sum of consecutive naturals, for example, 1272911966 + ... + 1272912123.

It is an arithmetic number, because the mean of its divisors is an integer number (50916481800).

Almost surely, 2^201120103031 is an apocalyptic number.

201120103031 is a deficient number, since it is larger than the sum of its proper divisors (2545824169).

201120103031 is an equidigital number, since it uses as much as digits as its factorization.

201120103031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2545824168.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 201120103031 its reverse (130301021102), we get a palindrome (331421124133).

The spelling of 201120103031 in words is "two hundred one billion, one hundred twenty million, one hundred three thousand, thirty-one".