202113103301021 has 32 divisors (see below), whose sum is σ = 227010688957440. Its totient is φ = 178328004364800.

The previous prime is 202113103300991. The next prime is 202113103301089. The reversal of 202113103301021 is 120103301311202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 202113103301021 - 2³⁴ = 202095923431837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202113103300984 and 202113103301002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202113103351021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 325910081 + ... + 326529641.

It is an arithmetic number, because the mean of its divisors is an integer number (7094084029920).

Almost surely, 2^{202113103301021} is an apocalyptic number.

It is an amenable number.

202113103301021 is a deficient number, since it is larger than the sum of its proper divisors (24897585656419).

202113103301021 is a wasteful number, since it uses less digits than its factorization.

202113103301021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621605.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 202113103301021 its reverse (120103301311202), we get a palindrome (322216404612223).

The spelling of 202113103301021 in words is "two hundred two trillion, one hundred thirteen billion, one hundred three million, three hundred one thousand, twenty-one".