20121030003 has 8 divisors (see below), whose sum is σ = 27104618128. Its totient is φ = 13275730944.

The previous prime is 20121029933. The next prime is 20121030029. The reversal of 20121030003 is 30003012102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20121030003 - 2¹⁰ = 20121028979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20121030043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34571926 + ... + 34572507.

It is an arithmetic number, because the mean of its divisors is an integer number (3388077266).

Almost surely, 2^20121030003 is an apocalyptic number.

20121030003 is a deficient number, since it is larger than the sum of its proper divisors (6983588125).

20121030003 is an equidigital number, since it uses as much as digits as its factorization.

20121030003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69144533.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20121030003 its reverse (30003012102), we get a palindrome (50124042105).

The spelling of 20121030003 in words is "twenty billion, one hundred twenty-one million, thirty thousand, three".