202121103202103 has 2 divisors, whose sum is σ = 202121103202104. Its totient is φ = 202121103202102.

The previous prime is 202121103202097. The next prime is 202121103202159. The reversal of 202121103202103 is 301202301121202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202121103202103 - 2²² = 202121099007799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202121103202163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101060551601051 + 101060551601052.

It is an arithmetic number, because the mean of its divisors is an integer number (101060551601052).

Almost surely, 2^{202121103202103} is an apocalyptic number.

202121103202103 is a deficient number, since it is larger than the sum of its proper divisors (1).

202121103202103 is an equidigital number, since it uses as much as digits as its factorization.

202121103202103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 202121103202103 its reverse (301202301121202), we get a palindrome (503323404323305).

The spelling of 202121103202103 in words is "two hundred two trillion, one hundred twenty-one billion, one hundred three million, two hundred two thousand, one hundred three".