1000111043401 has 2 divisors, whose sum is σ = 1000111043402. Its totient is φ = 1000111043400.

The previous prime is 1000111043377. The next prime is 1000111043417. The reversal of 1000111043401 is 1043401110001.

It is an a-pointer prime, because the next prime (1000111043417) can be obtained adding 1000111043401 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 847230043401 + 152881000000 = 920451^2 + 391000^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000111043401 - 2¹⁷ = 1000110912329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000111043431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500055521700 + 500055521701.

It is an arithmetic number, because the mean of its divisors is an integer number (500055521701).

Almost surely, 2^{1000111043401} is an apocalyptic number.

It is an amenable number.

1000111043401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000111043401 is an equidigital number, since it uses as much as digits as its factorization.

1000111043401 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 16.

Adding to 1000111043401 its reverse (1043401110001), we get a palindrome (2043512153402).

The spelling of 1000111043401 in words is "one trillion, one hundred eleven million, forty-three thousand, four hundred one".