120405421867207 has 4 divisors (see below), whose sum is σ = 120415192667640. Its totient is φ = 120395651066776.

The previous prime is 120405421867183. The next prime is 120405421867229. The reversal of 120405421867207 is 702768124504021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120405421867207 - 2¹¹ = 120405421865159 is a prime.

It is a super-2 number, since 2×120405421867207² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120405421867007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4885381732 + ... + 4885406377.

It is an arithmetic number, because the mean of its divisors is an integer number (30103798166910).

Almost surely, 2^{120405421867207} is an apocalyptic number.

120405421867207 is a deficient number, since it is larger than the sum of its proper divisors (9770800433).

120405421867207 is an equidigital number, since it uses as much as digits as its factorization.

120405421867207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9770800432.

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 120405421867207 in words is "one hundred twenty trillion, four hundred five billion, four hundred twenty-one million, eight hundred sixty-seven thousand, two hundred seven".