1243320523232 has 24 divisors (see below), whose sum is σ = 2448600418152. Its totient is φ = 621453750400.

The previous prime is 1243320523229. The next prime is 1243320523253. The reversal of 1243320523232 is 2323250233421.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6355619 + ... + 6548322.

It is an arithmetic number, because the mean of its divisors is an integer number (102025017423).

Almost surely, 2^{1243320523232} is an apocalyptic number.

It is an amenable number.

1243320523232 is a deficient number, since it is larger than the sum of its proper divisors (1205279894920).

1243320523232 is a wasteful number, since it uses less digits than its factorization.

1243320523232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12906962 (or 12906954 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 1243320523232 its reverse (2323250233421), we get a palindrome (3566570756653).

The spelling of 1243320523232 in words is "one trillion, two hundred forty-three billion, three hundred twenty million, five hundred twenty-three thousand, two hundred thirty-two".