1120420121242 has 4 divisors (see below), whose sum is σ = 1680630181866. Its totient is φ = 560210060620.

The previous prime is 1120420121239. The next prime is 1120420121279. The reversal of 1120420121242 is 2421210240211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 829412739841 + 291007381401 = 910721^2 + 539451^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280105030309 + ... + 280105030312.

Almost surely, 2^{1120420121242} is an apocalyptic number.

1120420121242 is a deficient number, since it is larger than the sum of its proper divisors (560210060624).

1120420121242 is an equidigital number, since it uses as much as digits as its factorization.

1120420121242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560210060623.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 1120420121242 its reverse (2421210240211), we get a palindrome (3541630361453).

The spelling of 1120420121242 in words is "one trillion, one hundred twenty billion, four hundred twenty million, one hundred twenty-one thousand, two hundred forty-two".