103203100021 has 8 divisors (see below), whose sum is σ = 120823141824. Its totient is φ = 86302243680.

The previous prime is 103203100009. The next prime is 103203100031. The reversal of 103203100021 is 120001302301.

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-103203100021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103203099974 and 103203100010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103203100031) 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, 179796055 + ... + 179796628.

It is an arithmetic number, because the mean of its divisors is an integer number (15102892728).

Almost surely, 2^103203100021 is an apocalyptic number.

It is an amenable number.

103203100021 is a deficient number, since it is larger than the sum of its proper divisors (17620041803).

103203100021 is an equidigital number, since it uses as much as digits as its factorization.

103203100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359592731.

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

Adding to 103203100021 its reverse (120001302301), we get a palindrome (223204402322).

The spelling of 103203100021 in words is "one hundred three billion, two hundred three million, one hundred thousand, twenty-one".