120434021 has 2 divisors, whose sum is σ = 120434022.
Its totient is φ = 120434020.
The previous prime is 120434009. The next prime is 120434033.
120434021 is nontrivially palindromic in base 10.
It is a balanced prime because it is at equal distance from previous prime (120434009) and next prime (120434033).
It can be written as a sum of positive squares in only one way, i.e., 73017025 + 47416996 = 8545^2 + 6886^2
It is a palprime.
It is a cyclic number.
It is not a de Polignac number, because 120434021 - 210 = 120432997 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (120434051) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60217010 + 60217011.
It is an arithmetic number, because the mean of its divisors is an integer number (60217011).
Almost surely, 2120434021 is an apocalyptic number.
It is an amenable number.
120434021 is a deficient number, since it is larger than the sum of its proper divisors (1).
120434021 is an equidigital number, since it uses as much as digits as its factorization.
120434021 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 192, while the sum is 17.
The square root of 120434021 is about 10974.2435274601.
The cubic root of 120434021 is about 493.8363592789.
The spelling of 120434021 in words is "one hundred twenty million, four hundred thirty-four thousand, twenty-one".