201112631 has 2 divisors, whose sum is σ = 201112632. Its totient is φ = 201112630.

The previous prime is 201112619. The next prime is 201112643. The reversal of 201112631 is 136211102.

It is a balanced prime because it is at equal distance from previous prime (201112619) and next prime (201112643).

It is a cyclic number.

It is not a de Polignac number, because 201112631 - 2¹⁸ = 200850487 is a prime.

It is a super-2 number, since 2×201112631² = 80892580695484322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201112031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100556315 + 100556316.

It is an arithmetic number, because the mean of its divisors is an integer number (100556316).

Almost surely, 2^201112631 is an apocalyptic number.

201112631 is a deficient number, since it is larger than the sum of its proper divisors (1).

201112631 is an equidigital number, since it uses as much as digits as its factorization.

201112631 is an odious number, because the sum of its binary digits is odd.

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

The square root of 201112631 is about 14181.4185115594. The cubic root of 201112631 is about 585.8859937720.

Adding to 201112631 its reverse (136211102), we get a palindrome (337323733).

The spelling of 201112631 in words is "two hundred one million, one hundred twelve thousand, six hundred thirty-one".