202111021013 has 16 divisors (see below), whose sum is σ = 233502963840. Its totient is φ = 172893273600.

The previous prime is 202111021003. The next prime is 202111021039. The reversal of 202111021013 is 310120111202.

It is a cyclic number.

It is not a de Polignac number, because 202111021013 - 2¹⁴ = 202111004629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202111021003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 809993 + ... + 1029713.

It is an arithmetic number, because the mean of its divisors is an integer number (14593935240).

Almost surely, 2^202111021013 is an apocalyptic number.

It is an amenable number.

202111021013 is a deficient number, since it is larger than the sum of its proper divisors (31391942827).

202111021013 is a wasteful number, since it uses less digits than its factorization.

202111021013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224668.

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

Adding to 202111021013 its reverse (310120111202), we get a palindrome (512231132215).

The spelling of 202111021013 in words is "two hundred two billion, one hundred eleven million, twenty-one thousand, thirteen".