11203020212 has 6 divisors (see below), whose sum is σ = 19605285378. Its totient is φ = 5601510104.

The previous prime is 11203020193. The next prime is 11203020221. The reversal of 11203020212 is 21202030211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9471960976 + 1731059236 = 97324^2 + 41606^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1400377523 + ... + 1400377530.

It is an arithmetic number, because the mean of its divisors is an integer number (3267547563).

Almost surely, 2^11203020212 is an apocalyptic number.

It is an amenable number.

11203020212 is a deficient number, since it is larger than the sum of its proper divisors (8402265166).

11203020212 is a wasteful number, since it uses less digits than its factorization.

11203020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2800755057 (or 2800755055 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 11203020212 its reverse (21202030211), we get a palindrome (32405050423).

Subtracting 11203020212 from its reverse (21202030211), we obtain a palindrome (9999009999).

The spelling of 11203020212 in words is "eleven billion, two hundred three million, twenty thousand, two hundred twelve".