1123303213012 has 6 divisors (see below), whose sum is σ = 1965780622778. Its totient is φ = 561651606504.

The previous prime is 1123303212991. The next prime is 1123303213051. The reversal of 1123303213012 is 2103123033211.

It can be written as a sum of positive squares in only one way, i.e., 800731466896 + 322571746116 = 894836^2 + 567954^2 .

It is a super-2 number, since 2×1123303213012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140412901623 + ... + 140412901630.

Almost surely, 2^{1123303213012} is an apocalyptic number.

It is an amenable number.

1123303213012 is a deficient number, since it is larger than the sum of its proper divisors (842477409766).

1123303213012 is a wasteful number, since it uses less digits than its factorization.

1123303213012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280825803257 (or 280825803255 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1123303213012 its reverse (2103123033211), we get a palindrome (3226426246223).

The spelling of 1123303213012 in words is "one trillion, one hundred twenty-three billion, three hundred three million, two hundred thirteen thousand, twelve".