20003012 has 24 divisors (see below), whose sum is σ = 36132096. Its totient is φ = 9684288.

The previous prime is 20003003. The next prime is 20003023. The reversal of 20003012 is 21030002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18848 + ... + 19880.

It is an arithmetic number, because the mean of its divisors is an integer number (1505504).

Almost surely, 2^20003012 is an apocalyptic number.

It is an amenable number.

20003012 is a deficient number, since it is larger than the sum of its proper divisors (16129084).

20003012 is a wasteful number, since it uses less digits than its factorization.

20003012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187 (or 1185 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 20003012 is about 4472.4726941592. The cubic root of 20003012 is about 271.4553873519.

Adding to 20003012 its reverse (21030002), we get a palindrome (41033014).

The spelling of 20003012 in words is "twenty million, three thousand, twelve".