1121320135 has 8 divisors (see below), whose sum is σ = 1449090720. Its totient is φ = 828051744.

The previous prime is 1121320129. The next prime is 1121320139. The reversal of 1121320135 is 5310231211.

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

It is not a de Polignac number, because 1121320135 - 2⁷ = 1121320007 is a prime.

It is a super-4 number, since 4×1121320135⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121320139) 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, 8625475 + ... + 8625604.

It is an arithmetic number, because the mean of its divisors is an integer number (181136340).

Almost surely, 2^1121320135 is an apocalyptic number.

1121320135 is a deficient number, since it is larger than the sum of its proper divisors (327770585).

1121320135 is a wasteful number, since it uses less digits than its factorization.

1121320135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17251097.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1121320135 is about 33486.1185418675. The cubic root of 1121320135 is about 1038.9066835686.

Adding to 1121320135 its reverse (5310231211), we get a palindrome (6431551346).

The spelling of 1121320135 in words is "one billion, one hundred twenty-one million, three hundred twenty thousand, one hundred thirty-five".