1121530053 has 8 divisors (see below), whose sum is σ = 1708998208. Its totient is φ = 640874304.

The previous prime is 1121530009. The next prime is 1121530061. The reversal of 1121530053 is 3500351211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1121530053 - 2¹⁴ = 1121513669 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 53406193 = 1121530053 / (1 + 1 + 2 + 1 + 5 + 3 + 0 + 0 + 5 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121530153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26703076 + ... + 26703117.

It is an arithmetic number, because the mean of its divisors is an integer number (213624776).

Almost surely, 2^1121530053 is an apocalyptic number.

It is an amenable number.

1121530053 is a deficient number, since it is larger than the sum of its proper divisors (587468155).

1121530053 is an equidigital number, since it uses as much as digits as its factorization.

1121530053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53406203.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1121530053 is about 33489.2527984725. The cubic root of 1121530053 is about 1038.9715094225.

Adding to 1121530053 its reverse (3500351211), we get a palindrome (4621881264).

The spelling of 1121530053 in words is "one billion, one hundred twenty-one million, five hundred thirty thousand, fifty-three".