101211312043 has 2 divisors, whose sum is σ = 101211312044. Its totient is φ = 101211312042.

The previous prime is 101211312029. The next prime is 101211312061. The reversal of 101211312043 is 340213112101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101211312043 - 2⁵ = 101211312011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101211312043.

It is not a weakly prime, because it can be changed into another prime (101211312073) 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, 50605656021 + 50605656022.

It is an arithmetic number, because the mean of its divisors is an integer number (50605656022).

Almost surely, 2^101211312043 is an apocalyptic number.

101211312043 is a deficient number, since it is larger than the sum of its proper divisors (1).

101211312043 is an equidigital number, since it uses as much as digits as its factorization.

101211312043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 101211312043 its reverse (340213112101), we get a palindrome (441424424144).

The spelling of 101211312043 in words is "one hundred one billion, two hundred eleven million, three hundred twelve thousand, forty-three".