1101320545225 has 24 divisors (see below), whose sum is σ = 1432626073920. Its totient is φ = 838693800000.

The previous prime is 1101320545147. The next prime is 1101320545277. The reversal of 1101320545225 is 5225450231011.

It is not a de Polignac number, because 1101320545225 - 2³¹ = 1099173061577 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 10646151 + ... + 10749100.

It is an arithmetic number, because the mean of its divisors is an integer number (59692753080).

Almost surely, 2^{1101320545225} is an apocalyptic number.

It is an amenable number.

1101320545225 is a deficient number, since it is larger than the sum of its proper divisors (331305528695).

1101320545225 is a wasteful number, since it uses less digits than its factorization.

1101320545225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21395361 (or 21395356 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 1101320545225 its reverse (5225450231011), we get a palindrome (6326770776236).

The spelling of 1101320545225 in words is "one trillion, one hundred one billion, three hundred twenty million, five hundred forty-five thousand, two hundred twenty-five".