202032103212421 has 2 divisors, whose sum is σ = 202032103212422. Its totient is φ = 202032103212420.

The previous prime is 202032103212409. The next prime is 202032103212493. The reversal of 202032103212421 is 124212301230202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196841292840196 + 5190810372225 = 14030014^2 + 2278335^2 .

It is a cyclic number.

It is not a de Polignac number, because 202032103212421 - 2¹¹ = 202032103210373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202032103212221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101016051606210 + 101016051606211.

It is an arithmetic number, because the mean of its divisors is an integer number (101016051606211).

Almost surely, 2^{202032103212421} is an apocalyptic number.

It is an amenable number.

202032103212421 is a deficient number, since it is larger than the sum of its proper divisors (1).

202032103212421 is an equidigital number, since it uses as much as digits as its factorization.

202032103212421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 202032103212421 its reverse (124212301230202), we get a palindrome (326244404442623).

The spelling of 202032103212421 in words is "two hundred two trillion, thirty-two billion, one hundred three million, two hundred twelve thousand, four hundred twenty-one".