11503100212 has 12 divisors (see below), whose sum is σ = 20824578180. Its totient is φ = 5553220736.

The previous prime is 11503100197. The next prime is 11503100243. The reversal of 11503100212 is 21200130511.

It can be written as a sum of positive squares in 2 ways, for example, as 2539555236 + 8963544976 = 50394^2 + 94676^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49582213 + ... + 49582444.

It is an arithmetic number, because the mean of its divisors is an integer number (1735381515).

Almost surely, 2^11503100212 is an apocalyptic number.

It is an amenable number.

11503100212 is a deficient number, since it is larger than the sum of its proper divisors (9321477968).

11503100212 is a wasteful number, since it uses less digits than its factorization.

11503100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99164690 (or 99164688 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

Adding to 11503100212 its reverse (21200130511), we get a palindrome (32703230723).

The spelling of 11503100212 in words is "eleven billion, five hundred three million, one hundred thousand, two hundred twelve".