103202002021 has 2 divisors, whose sum is σ = 103202002022. Its totient is φ = 103202002020.

The previous prime is 103202001997. The next prime is 103202002069. The reversal of 103202002021 is 120200202301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74340749025 + 28861252996 = 272655^2 + 169886^2 .

It is an emirp because it is prime and its reverse (120200202301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103202002021 - 2²⁷ = 103067784293 is a prime.

It is a super-2 number, since 2×103202002021² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103202001992 and 103202002010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103202002091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51601001010 + 51601001011.

It is an arithmetic number, because the mean of its divisors is an integer number (51601001011).

Almost surely, 2^103202002021 is an apocalyptic number.

It is an amenable number.

103202002021 is a deficient number, since it is larger than the sum of its proper divisors (1).

103202002021 is an equidigital number, since it uses as much as digits as its factorization.

103202002021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 103202002021 its reverse (120200202301), we get a palindrome (223402204322).

The spelling of 103202002021 in words is "one hundred three billion, two hundred two million, two thousand, twenty-one".