20121103001 has 8 divisors (see below), whose sum is σ = 20353563360. Its totient is φ = 19888784608.

The previous prime is 20121102979. The next prime is 20121103021. The reversal of 20121103001 is 10030112102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20121103001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20121103021) 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, 264110 + ... + 331656.

It is an arithmetic number, because the mean of its divisors is an integer number (2544195420).

Almost surely, 2^20121103001 is an apocalyptic number.

It is an amenable number.

20121103001 is a deficient number, since it is larger than the sum of its proper divisors (232460359).

20121103001 is an equidigital number, since it uses as much as digits as its factorization.

20121103001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70983.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20121103001 its reverse (10030112102), we get a palindrome (30151215103).

The spelling of 20121103001 in words is "twenty billion, one hundred twenty-one million, one hundred three thousand, one".