11503034225 has 6 divisors (see below), whose sum is σ = 14263762470. Its totient is φ = 9202427360.

The previous prime is 11503034201. The next prime is 11503034243. The reversal of 11503034225 is 52243030511.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 18054001 + 11484980224 = 4249^2 + 107168^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11503034225 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11503034194 and 11503034203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 230060660 + ... + 230060709.

It is an arithmetic number, because the mean of its divisors is an integer number (2377293745).

Almost surely, 2^11503034225 is an apocalyptic number.

It is an amenable number.

11503034225 is a deficient number, since it is larger than the sum of its proper divisors (2760728245).

11503034225 is an equidigital number, since it uses as much as digits as its factorization.

11503034225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460121379 (or 460121374 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 11503034225 its reverse (52243030511), we get a palindrome (63746064736).

The spelling of 11503034225 in words is "eleven billion, five hundred three million, thirty-four thousand, two hundred twenty-five".