20121333003 has 12 divisors (see below), whose sum is σ = 29073744648. Its totient is φ = 13409792640.

The previous prime is 20121332989. The next prime is 20121333053. The reversal of 20121333003 is 30033312102.

It is not a de Polignac number, because 20121333003 - 2⁶ = 20121332939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20121333053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340225 + ... + 394962.

It is an arithmetic number, because the mean of its divisors is an integer number (2422812054).

Almost surely, 2^20121333003 is an apocalyptic number.

20121333003 is a deficient number, since it is larger than the sum of its proper divisors (8952411645).

20121333003 is a wasteful number, since it uses less digits than its factorization.

20121333003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738234 (or 738231 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20121333003 its reverse (30033312102), we get a palindrome (50154645105).

The spelling of 20121333003 in words is "twenty billion, one hundred twenty-one million, three hundred thirty-three thousand, three".