120646454321 has 4 divisors (see below), whose sum is σ = 120710664000. Its totient is φ = 120582244644.

The previous prime is 120646454309. The next prime is 120646454333. The reversal of 120646454321 is 123454646021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 123454646021 = 7 ⋅17636378003.

It is an interprime number because it is at equal distance from previous prime (120646454309) and next prime (120646454333).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120646454321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120646454521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32102021 + ... + 32105778.

It is an arithmetic number, because the mean of its divisors is an integer number (30177666000).

Almost surely, 2^120646454321 is an apocalyptic number.

It is an amenable number.

120646454321 is a deficient number, since it is larger than the sum of its proper divisors (64209679).

120646454321 is an equidigital number, since it uses as much as digits as its factorization.

120646454321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64209678.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 120646454321 in words is "one hundred twenty billion, six hundred forty-six million, four hundred fifty-four thousand, three hundred twenty-one".