1123103201212 has 6 divisors (see below), whose sum is σ = 1965430602128. Its totient is φ = 561551600604.

The previous prime is 1123103201183. The next prime is 1123103201221. The reversal of 1123103201212 is 2121023013211.

It is a super-2 number, since 2×1123103201212² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1123103201212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140387900148 + ... + 140387900155.

Almost surely, 2^{1123103201212} is an apocalyptic number.

It is an amenable number.

1123103201212 is a deficient number, since it is larger than the sum of its proper divisors (842327400916).

1123103201212 is a wasteful number, since it uses less digits than its factorization.

1123103201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280775800307 (or 280775800305 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1123103201212 its reverse (2121023013211), we get a palindrome (3244126214423).

The spelling of 1123103201212 in words is "one trillion, one hundred twenty-three billion, one hundred three million, two hundred one thousand, two hundred twelve".