120021434 has 12 divisors (see below), whose sum is σ = 194946606. Its totient is φ = 55394352.

The previous prime is 120021427. The next prime is 120021439. The reversal of 120021434 is 434120021.

It can be written as a sum of positive squares in 3 ways, for example, as 61575409 + 58446025 = 7847^2 + 7645^2 .

It is not an unprimeable number, because it can be changed into a prime (120021439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 177209 + ... + 177884.

Almost surely, 2^120021434 is an apocalyptic number.

120021434 is a deficient number, since it is larger than the sum of its proper divisors (74925172).

120021434 is a wasteful number, since it uses less digits than its factorization.

120021434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355121 (or 355108 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 120021434 is about 10955.4294301958. The cubic root of 120021434 is about 493.2717802231.

Adding to 120021434 its reverse (434120021), we get a palindrome (554141455).

The spelling of 120021434 in words is "one hundred twenty million, twenty-one thousand, four hundred thirty-four".