120421453687 has 2 divisors, whose sum is σ = 120421453688. Its totient is φ = 120421453686.

The previous prime is 120421453673. The next prime is 120421453771. The reversal of 120421453687 is 786354124021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120421453687 - 2³¹ = 118273970039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120421453387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60210726843 + 60210726844.

It is an arithmetic number, because the mean of its divisors is an integer number (60210726844).

Almost surely, 2^120421453687 is an apocalyptic number.

120421453687 is a deficient number, since it is larger than the sum of its proper divisors (1).

120421453687 is an equidigital number, since it uses as much as digits as its factorization.

120421453687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 120421453687 in words is "one hundred twenty billion, four hundred twenty-one million, four hundred fifty-three thousand, six hundred eighty-seven".