20403003212 has 12 divisors (see below), whose sum is σ = 36238170360. Its totient is φ = 10049240256.

The previous prime is 20403003209. The next prime is 20403003251. The reversal of 20403003212 is 21230030402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38065037 + ... + 38065572.

It is an arithmetic number, because the mean of its divisors is an integer number (3019847530).

Almost surely, 2^20403003212 is an apocalyptic number.

It is an amenable number.

20403003212 is a deficient number, since it is larger than the sum of its proper divisors (15835167148).

20403003212 is a wasteful number, since it uses less digits than its factorization.

20403003212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76130680 (or 76130678 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20403003212 its reverse (21230030402), we get a palindrome (41633033614).

The spelling of 20403003212 in words is "twenty billion, four hundred three million, three thousand, two hundred twelve".