1103152520 has 32 divisors (see below), whose sum is σ = 2494584000. Its totient is φ = 439040448.

The previous prime is 1103152507. The next prime is 1103152529. The reversal of 1103152520 is 252513011.

It is a happy number.

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 = 1103152492 and 1103152501.

It is not an unprimeable number, because it can be changed into a prime (1103152529) 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, 61334 + ... + 77253.

It is an arithmetic number, because the mean of its divisors is an integer number (77955750).

Almost surely, 2^1103152520 is an apocalyptic number.

1103152520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103152520 is an abundant number, since it is smaller than the sum of its proper divisors (1391431480).

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

1103152520 is a wasteful number, since it uses less digits than its factorization.

1103152520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138797 (or 138793 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1103152520 is about 33213.7399279274. The cubic root of 1103152520 is about 1033.2653214573.

Adding to 1103152520 its reverse (252513011), we get a palindrome (1355665531).

The spelling of 1103152520 in words is "one billion, one hundred three million, one hundred fifty-two thousand, five hundred twenty".