1223423224340 has 24 divisors (see below), whose sum is σ = 2720317523112. Its totient is φ = 460582860800.

The previous prime is 1223423224337. The next prime is 1223423224381. The reversal of 1223423224340 is 434223243221.

It can be written as a sum of positive squares in 4 ways, for example, as 369817231876 + 853605992464 = 608126^2 + 923908^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1223423224297 and 1223423224306.

It is a congruent number.

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, 1799151461 + ... + 1799152140.

It is an arithmetic number, because the mean of its divisors is an integer number (113346563463).

Almost surely, 2^{1223423224340} is an apocalyptic number.

1223423224340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223423224340 is an abundant number, since it is smaller than the sum of its proper divisors (1496894298772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223423224340 is a wasteful number, since it uses less digits than its factorization.

1223423224340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3598303627 (or 3598303625 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 1223423224340 its reverse (434223243221), we get a palindrome (1657646467561).

The spelling of 1223423224340 in words is "one trillion, two hundred twenty-three billion, four hundred twenty-three million, two hundred twenty-four thousand, three hundred forty".