1121020533 has 8 divisors (see below), whose sum is σ = 1660771200. Its totient is φ = 747347004.

The previous prime is 1121020519. The next prime is 1121020573. The reversal of 1121020533 is 3350201211.

1121020533 is a `hidden beast` number, since 112 + 1 + 0 + 20 + 533 = 666.

It is not a de Polignac number, because 1121020533 - 2⁶ = 1121020469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121020573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20759613 + ... + 20759666.

It is an arithmetic number, because the mean of its divisors is an integer number (207596400).

Almost surely, 2^1121020533 is an apocalyptic number.

It is an amenable number.

1121020533 is a deficient number, since it is larger than the sum of its proper divisors (539750667).

1121020533 is an equidigital number, since it uses as much as digits as its factorization.

1121020533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41519288 (or 41519282 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1121020533 is about 33481.6447176658. The cubic root of 1121020533 is about 1038.8141479237.

Adding to 1121020533 its reverse (3350201211), we get a palindrome (4471221744).

The spelling of 1121020533 in words is "one billion, one hundred twenty-one million, twenty thousand, five hundred thirty-three".