1120135521 has 8 divisors (see below), whose sum is σ = 1533879424. Its totient is φ = 726574320.

The previous prime is 1120135517. The next prime is 1120135529. The reversal of 1120135521 is 1255310211.

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

It is not a de Polignac number, because 1120135521 - 2² = 1120135517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1120135529) 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, 5045545 + ... + 5045766.

It is an arithmetic number, because the mean of its divisors is an integer number (191734928).

Almost surely, 2^1120135521 is an apocalyptic number.

It is an amenable number.

1120135521 is a deficient number, since it is larger than the sum of its proper divisors (413743903).

1120135521 is a wasteful number, since it uses less digits than its factorization.

1120135521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10091351.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1120135521 is about 33468.4257323227. The cubic root of 1120135521 is about 1038.5407051091.

Adding to 1120135521 its reverse (1255310211), we get a palindrome (2375445732).

The spelling of 1120135521 in words is "one billion, one hundred twenty million, one hundred thirty-five thousand, five hundred twenty-one".