101201111243 has 2 divisors, whose sum is σ = 101201111244. Its totient is φ = 101201111242.

The previous prime is 101201111213. The next prime is 101201111269. The reversal of 101201111243 is 342111102101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101201111243 - 2²⁸ = 100932675787 is a prime.

It is a super-2 number, since 2×101201111243² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101201111213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50600555621 + 50600555622.

It is an arithmetic number, because the mean of its divisors is an integer number (50600555622).

Almost surely, 2^101201111243 is an apocalyptic number.

101201111243 is a deficient number, since it is larger than the sum of its proper divisors (1).

101201111243 is an equidigital number, since it uses as much as digits as its factorization.

101201111243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 101201111243 its reverse (342111102101), we get a palindrome (443312213344).

The spelling of 101201111243 in words is "one hundred one billion, two hundred one million, one hundred eleven thousand, two hundred forty-three".