120021642361 has 4 divisors (see below), whose sum is σ = 120025288192. Its totient is φ = 120017996532.

The previous prime is 120021642359. The next prime is 120021642397. The reversal of 120021642361 is 163246120021.

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 a cyclic number.

It is not a de Polignac number, because 120021642361 - 2¹ = 120021642359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120021643361) 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 3 ways as a sum of consecutive naturals, for example, 1773081 + ... + 1839526.

It is an arithmetic number, because the mean of its divisors is an integer number (30006322048).

Almost surely, 2^120021642361 is an apocalyptic number.

It is an amenable number.

120021642361 is a deficient number, since it is larger than the sum of its proper divisors (3645831).

120021642361 is an equidigital number, since it uses as much as digits as its factorization.

120021642361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3645830.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 120021642361 its reverse (163246120021), we get a palindrome (283267762382).

The spelling of 120021642361 in words is "one hundred twenty billion, twenty-one million, six hundred forty-two thousand, three hundred sixty-one".