20001103202 has 4 divisors (see below), whose sum is σ = 30001654806. Its totient is φ = 10000551600.

The previous prime is 20001103193. The next prime is 20001103247. The reversal of 20001103202 is 20230110002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20230110002 = 2 ⋅10115055001.

It can be written as a sum of positive squares in only one way, i.e., 19346306281 + 654796921 = 139091^2 + 25589^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000275799 + ... + 5000275802.

Almost surely, 2^20001103202 is an apocalyptic number.

20001103202 is a deficient number, since it is larger than the sum of its proper divisors (10000551604).

20001103202 is a wasteful number, since it uses less digits than its factorization.

20001103202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000551603.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20001103202 its reverse (20230110002), we get a palindrome (40231213204).

The spelling of 20001103202 in words is "twenty billion, one million, one hundred three thousand, two hundred two".