1223783043788 has 24 divisors (see below), whose sum is σ = 2178536236800. Its totient is φ = 601385727888.

The previous prime is 1223783043697. The next prime is 1223783043817. The reversal of 1223783043788 is 8873403873221.

It is a super-4 number, since 4×1223783043788⁴ (a number of 49 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

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, 5083208 + ... + 5318511.

It is an arithmetic number, because the mean of its divisors is an integer number (90772343200).

Almost surely, 2^{1223783043788} is an apocalyptic number.

It is an amenable number.

1223783043788 is a deficient number, since it is larger than the sum of its proper divisors (954753193012).

1223783043788 is a wasteful number, since it uses less digits than its factorization.

1223783043788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10402229 (or 10402227 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 56.

The spelling of 1223783043788 in words is "one trillion, two hundred twenty-three billion, seven hundred eighty-three million, forty-three thousand, seven hundred eighty-eight".