1120300021 has 4 divisors (see below), whose sum is σ = 1179263200. Its totient is φ = 1061336844.

The previous prime is 1120300007. The next prime is 1120300057. The reversal of 1120300021 is 1200030211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1200030211 = 2467 ⋅486433.

It is a cyclic number.

It is not a de Polignac number, because 1120300021 - 2¹⁷ = 1120168949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120299980 and 1120300007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120300001) 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 in 3 ways as a sum of consecutive naturals, for example, 29481561 + ... + 29481598.

It is an arithmetic number, because the mean of its divisors is an integer number (294815800).

Almost surely, 2^1120300021 is an apocalyptic number.

It is an amenable number.

1120300021 is a deficient number, since it is larger than the sum of its proper divisors (58963179).

1120300021 is an equidigital number, since it uses as much as digits as its factorization.

1120300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58963178.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1120300021 is about 33470.8831822526. The cubic root of 1120300021 is about 1038.5915416910.

Adding to 1120300021 its reverse (1200030211), we get a palindrome (2320330232).

The spelling of 1120300021 in words is "one billion, one hundred twenty million, three hundred thousand, twenty-one".