20113223202 has 24 divisors (see below), whose sum is σ = 43581498636. Its totient is φ = 6703969536.

The previous prime is 20113223183. The next prime is 20113223213. The reversal of 20113223202 is 20232231102.

20113223202 is a `hidden beast` number, since 20 + 1 + 1 + 322 + 320 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20112628761 + 594441 = 141819^2 + 771^2 .

It is a super-2 number, since 2×20113223202² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 367098 + ... + 418314.

Almost surely, 2^20113223202 is an apocalyptic number.

20113223202 is an abundant number, since it is smaller than the sum of its proper divisors (23468275434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20113223202 is a wasteful number, since it uses less digits than its factorization.

20113223202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73042 (or 73039 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20113223202 its reverse (20232231102), we get a palindrome (40345454304).

The spelling of 20113223202 in words is "twenty billion, one hundred thirteen million, two hundred twenty-three thousand, two hundred two".