111001001010901 has 2 divisors, whose sum is σ = 111001001010902. Its totient is φ = 111001001010900.

The previous prime is 111001001010899. The next prime is 111001001010931. The reversal of 111001001010901 is 109010100100111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77422858548676 + 33578142462225 = 8799026^2 + 5794665^2 .

It is a cyclic number.

It is not a de Polignac number, because 111001001010901 - 2¹ = 111001001010899 is a prime.

Together with 111001001010899, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111001001010931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500500505450 + 55500500505451.

It is an arithmetic number, because the mean of its divisors is an integer number (55500500505451).

Almost surely, 2^{111001001010901} is an apocalyptic number.

It is an amenable number.

111001001010901 is a deficient number, since it is larger than the sum of its proper divisors (1).

111001001010901 is an equidigital number, since it uses as much as digits as its factorization.

111001001010901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 16.

The spelling of 111001001010901 in words is "one hundred eleven trillion, one billion, one million, ten thousand, nine hundred one".