120023602661 has 16 divisors (see below), whose sum is σ = 135396796800. Its totient is φ = 105823257408.

The previous prime is 120023602649. The next prime is 120023602711. The reversal of 120023602661 is 166206320021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120023602661 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120023601661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3695366 + ... + 3727703.

It is an arithmetic number, because the mean of its divisors is an integer number (8462299800).

Almost surely, 2^120023602661 is an apocalyptic number.

It is an amenable number.

120023602661 is a deficient number, since it is larger than the sum of its proper divisors (15373194139).

120023602661 is a wasteful number, since it uses less digits than its factorization.

120023602661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7423148.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 120023602661 its reverse (166206320021), we get a palindrome (286229922682).

The spelling of 120023602661 in words is "one hundred twenty billion, twenty-three million, six hundred two thousand, six hundred sixty-one".