103202003021 has 4 divisors (see below), whose sum is σ = 111140618652. Its totient is φ = 95263387392.

The previous prime is 103202002999. The next prime is 103202003033. The reversal of 103202003021 is 120300202301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43123090921 + 60078912100 = 207661^2 + 245110^2 .

It is a cyclic number.

It is not a de Polignac number, because 103202003021 - 2¹⁰ = 103202001997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103202002987 and 103202003005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103202003081) 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, 3969307796 + ... + 3969307821.

It is an arithmetic number, because the mean of its divisors is an integer number (27785154663).

Almost surely, 2^103202003021 is an apocalyptic number.

It is an amenable number.

103202003021 is a deficient number, since it is larger than the sum of its proper divisors (7938615631).

103202003021 is an equidigital number, since it uses as much as digits as its factorization.

103202003021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7938615630.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 103202003021 its reverse (120300202301), we get a palindrome (223502205322).

The spelling of 103202003021 in words is "one hundred three billion, two hundred two million, three thousand, twenty-one".