11203121210 has 16 divisors (see below), whose sum is σ = 21351831336. Its totient is φ = 4217645568.

The previous prime is 11203121191. The next prime is 11203121233. The reversal of 11203121210 is 1212130211.

It can be written as a sum of positive squares in 4 ways, for example, as 10526965201 + 676156009 = 102601^2 + 26003^2 .

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, 32950187 + ... + 32950526.

Almost surely, 2^11203121210 is an apocalyptic number.

11203121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11203121210 is a deficient number, since it is larger than the sum of its proper divisors (10148710126).

11203121210 is a wasteful number, since it uses less digits than its factorization.

11203121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65900737.

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

Adding to 11203121210 its reverse (1212130211), we get a palindrome (12415251421).

Subtracting from 11203121210 its reverse (1212130211), we obtain a palindrome (9990990999).

The spelling of 11203121210 in words is "eleven billion, two hundred three million, one hundred twenty-one thousand, two hundred ten".