1113320453520 has 320 divisors, whose sum is σ = 3818599593984. Its totient is φ = 266071080960.

The previous prime is 1113320453471. The next prime is 1113320453521. The reversal of 1113320453520 is 253540233111.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1113320453521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 106706224 + ... + 106716656.

Almost surely, 2^{1113320453520} is an apocalyptic number.

1113320453520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1113320453520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1909299796992).

1113320453520 is an abundant number, since it is smaller than the sum of its proper divisors (2705279140464).

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

1113320453520 is a wasteful number, since it uses less digits than its factorization.

1113320453520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11030 (or 11024 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 1113320453520 its reverse (253540233111), we get a palindrome (1366860686631).

The spelling of 1113320453520 in words is "one trillion, one hundred thirteen billion, three hundred twenty million, four hundred fifty-three thousand, five hundred twenty".