201112000031 has 4 divisors (see below), whose sum is σ = 201328483200. Its totient is φ = 200895516864.

The previous prime is 201112000003. The next prime is 201112000043. The reversal of 201112000031 is 130000211102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130000211102 = 2 ⋅65000105551.

It is a cyclic number.

It is not a de Polignac number, because 201112000031 - 2¹⁸ = 201111737887 is a prime.

It is a super-2 number, since 2×201112000031² (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 = 201111999976 and 201112000021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112000091) 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, 108240191 + ... + 108242048.

It is an arithmetic number, because the mean of its divisors is an integer number (50332120800).

Almost surely, 2^201112000031 is an apocalyptic number.

201112000031 is a deficient number, since it is larger than the sum of its proper divisors (216483169).

201112000031 is an equidigital number, since it uses as much as digits as its factorization.

201112000031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216483168.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 201112000031 its reverse (130000211102), we get a palindrome (331112211133).

The spelling of 201112000031 in words is "two hundred one billion, one hundred twelve million, thirty-one", and thus it is an aban number.