120420321442 has 4 divisors (see below), whose sum is σ = 180630482166. Its totient is φ = 60210160720.

The previous prime is 120420321409. The next prime is 120420321467. The reversal of 120420321442 is 244123024021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244123024021 = 71 ⋅3438352451.

It can be written as a sum of positive squares in only one way, i.e., 100185543441 + 20234778001 = 316521^2 + 142249^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30105080359 + ... + 30105080362.

Almost surely, 2^120420321442 is an apocalyptic number.

120420321442 is a deficient number, since it is larger than the sum of its proper divisors (60210160724).

120420321442 is an equidigital number, since it uses as much as digits as its factorization.

120420321442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60210160723.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 120420321442 its reverse (244123024021), we get a palindrome (364543345463).

The spelling of 120420321442 in words is "one hundred twenty billion, four hundred twenty million, three hundred twenty-one thousand, four hundred forty-two".