11243634212 has 18 divisors (see below), whose sum is σ = 19974452022. Its totient is φ = 5537900544.

The previous prime is 11243634113. The next prime is 11243634223. The reversal of 11243634212 is 21243634211.

It can be written as a sum of positive squares in only one way, i.e., 7377779236 + 3865854976 = 85894^2 + 62176^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 295133 + ... + 331044.

It is an arithmetic number, because the mean of its divisors is an integer number (1109691779).

Almost surely, 2^11243634212 is an apocalyptic number.

It is an amenable number.

11243634212 is a deficient number, since it is larger than the sum of its proper divisors (8730817810).

11243634212 is an equidigital number, since it uses as much as digits as its factorization.

11243634212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626315 (or 626246 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

Subtracting 11243634212 from its reverse (21243634211), we obtain a palindrome (9999999999).

The spelling of 11243634212 in words is "eleven billion, two hundred forty-three million, six hundred thirty-four thousand, two hundred twelve".