20121333004 has 12 divisors (see below), whose sum is σ = 35214192328. Its totient is φ = 10060135200.

The previous prime is 20121332989. The next prime is 20121333053. The reversal of 20121333004 is 40033312102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40482 + ... + 204649.

Almost surely, 2^20121333004 is an apocalyptic number.

It is an amenable number.

20121333004 is a deficient number, since it is larger than the sum of its proper divisors (15092859324).

20121333004 is a wasteful number, since it uses less digits than its factorization.

20121333004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265656 (or 265654 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20121333004 its reverse (40033312102), we get a palindrome (60154645106).

The spelling of 20121333004 in words is "twenty billion, one hundred twenty-one million, three hundred thirty-three thousand, four".