20211002203 has 16 divisors (see below), whose sum is σ = 23867191296. Its totient is φ = 16748154720.

The previous prime is 20211002191. The next prime is 20211002243. The reversal of 20211002203 is 30220011202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20211002203 is a prime.

It is a super-2 number, since 2×20211002203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20211002243) 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, 173850 + ... + 265792.

It is an arithmetic number, because the mean of its divisors is an integer number (1491699456).

Almost surely, 2^20211002203 is an apocalyptic number.

20211002203 is a deficient number, since it is larger than the sum of its proper divisors (3656189093).

20211002203 is a wasteful number, since it uses less digits than its factorization.

20211002203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92994.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20211002203 its reverse (30220011202), we get a palindrome (50431013405).

The spelling of 20211002203 in words is "twenty billion, two hundred eleven million, two thousand, two hundred three".