102121030003 has 4 divisors (see below), whose sum is σ = 102121872328. Its totient is φ = 102120187680.

The previous prime is 102121029973. The next prime is 102121030013. The reversal of 102121030003 is 300030121201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 102121030003 - 2¹⁷ = 102120898931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102121030013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200913 + ... + 494578.

It is an arithmetic number, because the mean of its divisors is an integer number (25530468082).

Almost surely, 2^102121030003 is an apocalyptic number.

102121030003 is a deficient number, since it is larger than the sum of its proper divisors (842325).

102121030003 is an equidigital number, since it uses as much as digits as its factorization.

102121030003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842324.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 102121030003 its reverse (300030121201), we get a palindrome (402151151204).

The spelling of 102121030003 in words is "one hundred two billion, one hundred twenty-one million, thirty thousand, three".