1211120342063 has 8 divisors (see below), whose sum is σ = 1216759664640. Its totient is φ = 1205489624760.

The previous prime is 1211120342053. The next prime is 1211120342147. The reversal of 1211120342063 is 3602430211121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1211120342063 - 2³⁰ = 1210046600239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211120342023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1869095 + ... + 2432232.

It is an arithmetic number, because the mean of its divisors is an integer number (152094958080).

Almost surely, 2^{1211120342063} is an apocalyptic number.

1211120342063 is a deficient number, since it is larger than the sum of its proper divisors (5639322577).

1211120342063 is a wasteful number, since it uses less digits than its factorization.

1211120342063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302637.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 1211120342063 its reverse (3602430211121), we get a palindrome (4813550553184).

The spelling of 1211120342063 in words is "one trillion, two hundred eleven billion, one hundred twenty million, three hundred forty-two thousand, sixty-three".