20203021110 has 16 divisors (see below), whose sum is σ = 48487250736. Its totient is φ = 5387472288.

The previous prime is 20203021109. The next prime is 20203021169. The reversal of 20203021110 is 1112030202.

It is a super-2 number, since 2×20203021110² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336716989 + ... + 336717048.

It is an arithmetic number, because the mean of its divisors is an integer number (3030453171).

Almost surely, 2^20203021110 is an apocalyptic number.

20203021110 is an abundant number, since it is smaller than the sum of its proper divisors (28284229626).

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

20203021110 is a wasteful number, since it uses less digits than its factorization.

20203021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673434047.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20203021110 its reverse (1112030202), we get a palindrome (21315051312).

The spelling of 20203021110 in words is "twenty billion, two hundred three million, twenty-one thousand, one hundred ten".