1120030021 has 16 divisors (see below), whose sum is σ = 1243747008. Its totient is φ = 1000080000.

The previous prime is 1120030007. The next prime is 1120030027. The reversal of 1120030021 is 1200300211.

It is a cyclic number.

It is not a de Polignac number, because 1120030021 - 2¹¹ = 1120027973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120030027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198775 + ... + 204331.

It is an arithmetic number, because the mean of its divisors is an integer number (77734188).

Almost surely, 2^1120030021 is an apocalyptic number.

1120030021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1120030021 is a deficient number, since it is larger than the sum of its proper divisors (123716987).

1120030021 is a wasteful number, since it uses less digits than its factorization.

1120030021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5892.

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

The square root of 1120030021 is about 33466.8495828335. The cubic root of 1120030021 is about 1038.5080990888.

Adding to 1120030021 its reverse (1200300211), we get a palindrome (2320330232).

The spelling of 1120030021 in words is "one billion, one hundred twenty million, thirty thousand, twenty-one".