120343661361 has 48 divisors (see below), whose sum is σ = 226249087680. Its totient is φ = 62516180160.

The previous prime is 120343661359. The next prime is 120343661363. The reversal of 120343661361 is 163166343021.

120343661361 is a `hidden beast` number, since 1 + 2 + 0 + 3 + 4 + 36 + 613 + 6 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (120343661359) and next prime (120343661363).

It is not a de Polignac number, because 120343661361 - 2¹ = 120343661359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120343661363) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4120116 + ... + 4149221.

It is an arithmetic number, because the mean of its divisors is an integer number (4713522660).

Almost surely, 2^120343661361 is an apocalyptic number.

120343661361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120343661361 is a deficient number, since it is larger than the sum of its proper divisors (105905426319).

120343661361 is a wasteful number, since it uses less digits than its factorization.

120343661361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8269371 (or 8269358 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The spelling of 120343661361 in words is "one hundred twenty billion, three hundred forty-three million, six hundred sixty-one thousand, three hundred sixty-one".