1123303201212 has 24 divisors (see below), whose sum is σ = 2621057955712. Its totient is φ = 374431950000.

The previous prime is 1123303201199. The next prime is 1123303201253. The reversal of 1123303201212 is 2121023033211.

It is a congruent number.

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, 3340587 + ... + 3661437.

Almost surely, 2^{1123303201212} is an apocalyptic number.

1123303201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1123303201212 is an abundant number, since it is smaller than the sum of its proper divisors (1497754754500).

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

1123303201212 is a wasteful number, since it uses less digits than its factorization.

1123303201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612609 (or 612607 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1123303201212 its reverse (2121023033211), we get a palindrome (3244326234423).

The spelling of 1123303201212 in words is "one trillion, one hundred twenty-three billion, three hundred three million, two hundred one thousand, two hundred twelve".