1223402343344 has 40 divisors (see below), whose sum is σ = 2392758536688. Its totient is φ = 605935400960.

The previous prime is 1223402343343. The next prime is 1223402343353. The reversal of 1223402343344 is 4433432043221.

It is a super-2 number, since 2×1223402343344² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1223402343343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426104 + ... + 1621224.

Almost surely, 2^{1223402343344} is an apocalyptic number.

It is an amenable number.

1223402343344 is a deficient number, since it is larger than the sum of its proper divisors (1169356193344).

1223402343344 is a wasteful number, since it uses less digits than its factorization.

1223402343344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195733 (or 1195727 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 1223402343344 its reverse (4433432043221), we get a palindrome (5656834386565).

The spelling of 1223402343344 in words is "one trillion, two hundred twenty-three billion, four hundred two million, three hundred forty-three thousand, three hundred forty-four".