120421519 has 2 divisors, whose sum is σ = 120421520. Its totient is φ = 120421518.

The previous prime is 120421507. The next prime is 120421531. The reversal of 120421519 is 915124021.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (120421507) and next prime (120421531).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120421519 is a prime.

It is a super-2 number, since 2×120421519² = 29002684476534722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120421493 and 120421502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120421549) 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 as a sum of consecutive naturals, namely, 60210759 + 60210760.

It is an arithmetic number, because the mean of its divisors is an integer number (60210760).

Almost surely, 2^120421519 is an apocalyptic number.

120421519 is a deficient number, since it is larger than the sum of its proper divisors (1).

120421519 is an equidigital number, since it uses as much as digits as its factorization.

120421519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 120421519 is about 10973.6739062176. The cubic root of 120421519 is about 493.8192706530.

The spelling of 120421519 in words is "one hundred twenty million, four hundred twenty-one thousand, five hundred nineteen".