1113515120 has 20 divisors (see below), whose sum is σ = 2588922840. Its totient is φ = 445406016.

The previous prime is 1113515099. The next prime is 1113515129. The reversal of 1113515120 is 215153111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1113515120² = 2479831844937228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1113515092 and 1113515101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113515129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6959390 + ... + 6959549.

It is an arithmetic number, because the mean of its divisors is an integer number (129446142).

Almost surely, 2^1113515120 is an apocalyptic number.

1113515120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113515120 is an abundant number, since it is smaller than the sum of its proper divisors (1475407720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1113515120 is a wasteful number, since it uses less digits than its factorization.

1113515120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13918952 (or 13918946 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 1113515120 is about 33369.3739827405. The cubic root of 1113515120 is about 1036.4906120293.

Adding to 1113515120 its reverse (215153111), we get a palindrome (1328668231).

The spelling of 1113515120 in words is "one billion, one hundred thirteen million, five hundred fifteen thousand, one hundred twenty".