1182312071109 has 64 divisors (see below), whose sum is σ = 2001225318400. Its totient is φ = 683855234496.

The previous prime is 1182312071081. The next prime is 1182312071117. The reversal of 1182312071109 is 9011702132811.

1182312071109 is a `hidden beast` number, since 118 + 231 + 207 + 1 + 109 = 666.

It is not a de Polignac number, because 1182312071109 - 2⁷ = 1182312070981 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1182312071189) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 148992 + ... + 1544934.

It is an arithmetic number, because the mean of its divisors is an integer number (31269145600).

Almost surely, 2^{1182312071109} is an apocalyptic number.

1182312071109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1182312071109 is a deficient number, since it is larger than the sum of its proper divisors (818913247291).

1182312071109 is a wasteful number, since it uses less digits than its factorization.

1182312071109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396111 (or 1396105 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 36.

The spelling of 1182312071109 in words is "one trillion, one hundred eighty-two billion, three hundred twelve million, seventy-one thousand, one hundred nine".