1243102204012 has 6 divisors (see below), whose sum is σ = 2175428857028. Its totient is φ = 621551102004.

The previous prime is 1243102203971. The next prime is 1243102204027. The reversal of 1243102204012 is 2104022013421.

It is a super-2 number, since 2×1243102204012² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155387775498 + ... + 155387775505.

Almost surely, 2^{1243102204012} is an apocalyptic number.

It is an amenable number.

1243102204012 is a deficient number, since it is larger than the sum of its proper divisors (932326653016).

1243102204012 is a wasteful number, since it uses less digits than its factorization.

1243102204012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310775551007 (or 310775551005 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1243102204012 its reverse (2104022013421), we get a palindrome (3347124217433).

The spelling of 1243102204012 in words is "one trillion, two hundred forty-three billion, one hundred two million, two hundred four thousand, twelve".