1188004938101 has 2 divisors, whose sum is σ = 1188004938102. Its totient is φ = 1188004938100.

The previous prime is 1188004938079. The next prime is 1188004938119. The reversal of 1188004938101 is 1018394008811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1109451423025 + 78553515076 = 1053305^2 + 280274^2 .

It is a cyclic number.

It is not a de Polignac number, because 1188004938101 - 2¹⁴ = 1188004921717 is a prime.

It is a super-2 number, since 2×1188004938101² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1188004938151) 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, 594002469050 + 594002469051.

It is an arithmetic number, because the mean of its divisors is an integer number (594002469051).

Almost surely, 2^{1188004938101} is an apocalyptic number.

It is an amenable number.

1188004938101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1188004938101 is an equidigital number, since it uses as much as digits as its factorization.

1188004938101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 44.

The spelling of 1188004938101 in words is "one trillion, one hundred eighty-eight billion, four million, nine hundred thirty-eight thousand, one hundred one".