1973123512 has 16 divisors (see below), whose sum is σ = 3751714800. Its totient is φ = 972666240.

The previous prime is 1973123491. The next prime is 1973123519. The reversal of 1973123512 is 2153213791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1973123519) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1736337 + ... + 1737472.

It is an arithmetic number, because the mean of its divisors is an integer number (234482175).

Almost surely, 2^1973123512 is an apocalyptic number.

It is an amenable number.

1973123512 is a deficient number, since it is larger than the sum of its proper divisors (1778591288).

1973123512 is a wasteful number, since it uses less digits than its factorization.

1973123512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3473886 (or 3473882 counting only the distinct ones).

The product of its digits is 11340, while the sum is 34.

The square root of 1973123512 is about 44419.8549299747. The cubic root of 1973123512 is about 1254.2518701088.

The spelling of 1973123512 in words is "one billion, nine hundred seventy-three million, one hundred twenty-three thousand, five hundred twelve".