1123203132212 has 12 divisors (see below), whose sum is σ = 2246406264480. Its totient is φ = 481372770936.

The previous prime is 1123203132199. The next prime is 1123203132217. The reversal of 1123203132212 is 2122313023211.

1123203132212 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123203132217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20057198762 + ... + 20057198817.

It is an arithmetic number, because the mean of its divisors is an integer number (187200522040).

Almost surely, 2^{1123203132212} is an apocalyptic number.

It is an amenable number.

1123203132212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1123203132212 is a wasteful number, since it uses less digits than its factorization.

1123203132212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40114397590 (or 40114397588 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1123203132212 its reverse (2122313023211), we get a palindrome (3245516155423).

The spelling of 1123203132212 in words is "one trillion, one hundred twenty-three billion, two hundred three million, one hundred thirty-two thousand, two hundred twelve".