1121315512 has 32 divisors (see below), whose sum is σ = 2243704320. Its totient is φ = 523514880.

The previous prime is 1121315423. The next prime is 1121315513. The reversal of 1121315512 is 2155131211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121315513) 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, 15189 + ... + 49732.

It is an arithmetic number, because the mean of its divisors is an integer number (70115760).

Almost surely, 2^1121315512 is an apocalyptic number.

It is an amenable number.

1121315512 is an abundant number, since it is smaller than the sum of its proper divisors (1122388808).

1121315512 is a wasteful number, since it uses less digits than its factorization.

1121315512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65071 (or 65067 counting only the distinct ones).

The product of its digits is 300, while the sum is 22.

The square root of 1121315512 is about 33486.0495131928. The cubic root of 1121315512 is about 1038.9052558253.

Adding to 1121315512 its reverse (2155131211), we get a palindrome (3276446723).

The spelling of 1121315512 in words is "one billion, one hundred twenty-one million, three hundred fifteen thousand, five hundred twelve".