1111203513225 has 192 divisors, whose sum is σ = 2279516601600. Its totient is φ = 526944337920.

The previous prime is 1111203513193. The next prime is 1111203513229. The reversal of 1111203513225 is 5223153021111.

1111203513225 is a `hidden beast` number, since 1 + 1 + 1 + 120 + 3 + 513 + 2 + 25 = 666.

It is not a de Polignac number, because 1111203513225 - 2⁵ = 1111203513193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1111203513229) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 112727497 + ... + 112737353.

It is an arithmetic number, because the mean of its divisors is an integer number (11872482300).

Almost surely, 2^{1111203513225} is an apocalyptic number.

1111203513225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1111203513225 is an abundant number, since it is smaller than the sum of its proper divisors (1168313088375).

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

1111203513225 is a wasteful number, since it uses less digits than its factorization.

1111203513225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10361 (or 10350 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 1111203513225 its reverse (5223153021111), we get a palindrome (6334356534336).

The spelling of 1111203513225 in words is "one trillion, one hundred eleven billion, two hundred three million, five hundred thirteen thousand, two hundred twenty-five".