202021101113 has 8 divisors (see below), whose sum is σ = 217570302600. Its totient is φ = 186473202048.

The previous prime is 202021101067. The next prime is 202021101119. The reversal of 202021101113 is 311101120202.

It can be written as a sum of positive squares in 4 ways, for example, as 58965437584 + 143055663529 = 242828^2 + 378227^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202021101113 - 2⁸ = 202021100857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202021101119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9323 + ... + 635711.

It is an arithmetic number, because the mean of its divisors is an integer number (27196287825).

Almost surely, 2^202021101113 is an apocalyptic number.

It is an amenable number.

202021101113 is a deficient number, since it is larger than the sum of its proper divisors (15549201487).

202021101113 is a wasteful number, since it uses less digits than its factorization.

202021101113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651211.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 202021101113 its reverse (311101120202), we get a palindrome (513122221315).

The spelling of 202021101113 in words is "two hundred two billion, twenty-one million, one hundred one thousand, one hundred thirteen".