100101111001043 has 2 divisors, whose sum is σ = 100101111001044. Its totient is φ = 100101111001042.

The previous prime is 100101111000977. The next prime is 100101111001127. The reversal of 100101111001043 is 340100111101001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100101111001043 - 2¹⁰ = 100101111000019 is a prime.

It is not a weakly prime, because it can be changed into another prime (100101111001643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50050555500521 + 50050555500522.

It is an arithmetic number, because the mean of its divisors is an integer number (50050555500522).

Almost surely, 2^{100101111001043} is an apocalyptic number.

100101111001043 is a deficient number, since it is larger than the sum of its proper divisors (1).

100101111001043 is an equidigital number, since it uses as much as digits as its factorization.

100101111001043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 100101111001043 its reverse (340100111101001), we get a palindrome (440201222102044).

The spelling of 100101111001043 in words is "one hundred trillion, one hundred one billion, one hundred eleven million, one thousand, forty-three".