1125520012 has 24 divisors (see below), whose sum is σ = 2017606976. Its totient is φ = 549088848.

The previous prime is 1125520001. The next prime is 1125520027. The reversal of 1125520012 is 2100255211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190243 + ... + 196069.

Almost surely, 2^1125520012 is an apocalyptic number.

It is an amenable number.

1125520012 is a deficient number, since it is larger than the sum of its proper divisors (892086964).

1125520012 is a wasteful number, since it uses less digits than its factorization.

1125520012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6997 (or 6995 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1125520012 is about 33548.7706481176. The cubic root of 1125520012 is about 1040.2021340342.

Adding to 1125520012 its reverse (2100255211), we get a palindrome (3225775223).

The spelling of 1125520012 in words is "one billion, one hundred twenty-five million, five hundred twenty thousand, twelve".