20102003121 has 8 divisors (see below), whose sum is σ = 26833731840. Its totient is φ = 13385804912.

The previous prime is 20102003113. The next prime is 20102003143. The reversal of 20102003121 is 12130020102.

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

It is a cyclic number.

It is not a de Polignac number, because 20102003121 - 2³ = 20102003113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20102003097 and 20102003106.

It is not an unprimeable number, because it can be changed into a prime (20102003111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3879606 + ... + 3884783.

It is an arithmetic number, because the mean of its divisors is an integer number (3354216480).

Almost surely, 2^20102003121 is an apocalyptic number.

It is an amenable number.

20102003121 is a deficient number, since it is larger than the sum of its proper divisors (6731728719).

20102003121 is an equidigital number, since it uses as much as digits as its factorization.

20102003121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7765255.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20102003121 its reverse (12130020102), we get a palindrome (32232023223).

The spelling of 20102003121 in words is "twenty billion, one hundred two million, three thousand, one hundred twenty-one".