1121325521445 has 48 divisors (see below), whose sum is σ = 1962516956400. Its totient is φ = 592235089920.

The previous prime is 1121325521423. The next prime is 1121325521461. The reversal of 1121325521445 is 5441255231211.

1121325521445 is a `hidden beast` number, since 1 + 1 + 21 + 32 + 552 + 14 + 45 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 103391830116 + 1017933691329 = 321546^2 + 1008927^2 .

It is not a de Polignac number, because 1121325521445 - 2⁹ = 1121325520933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9205035 + ... + 9326055.

It is an arithmetic number, because the mean of its divisors is an integer number (40885769925).

Almost surely, 2^{1121325521445} is an apocalyptic number.

1121325521445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1121325521445 is a deficient number, since it is larger than the sum of its proper divisors (841191434955).

1121325521445 is a wasteful number, since it uses less digits than its factorization.

1121325521445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123030 (or 123027 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The spelling of 1121325521445 in words is "one trillion, one hundred twenty-one billion, three hundred twenty-five million, five hundred twenty-one thousand, four hundred forty-five".