1188324401 has 4 divisors (see below), whose sum is σ = 1296353904. Its totient is φ = 1080294900.

The previous prime is 1188324383. The next prime is 1188324419. The reversal of 1188324401 is 1044238811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1188324383) and next prime (1188324419).

It is a cyclic number.

It is not a de Polignac number, because 1188324401 - 2⁶ = 1188324337 is a prime.

It is a super-2 number, since 2×1188324401² = 2824229764024017602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1188324001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54014735 + ... + 54014756.

It is an arithmetic number, because the mean of its divisors is an integer number (324088476).

Almost surely, 2^1188324401 is an apocalyptic number.

1188324401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1188324401 is a deficient number, since it is larger than the sum of its proper divisors (108029503).

1188324401 is a wasteful number, since it uses less digits than its factorization.

1188324401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108029502.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 1188324401 is about 34472.0814718230. The cubic root of 1188324401 is about 1059.2008932160.

The spelling of 1188324401 in words is "one billion, one hundred eighty-eight million, three hundred twenty-four thousand, four hundred one".