1321123342304 has 48 divisors (see below), whose sum is σ = 2709559142640. Its totient is φ = 633527485440.

The previous prime is 1321123342261. The next prime is 1321123342313. The reversal of 1321123342304 is 4032433211231.

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, 8456099 + ... + 8610914.

It is an arithmetic number, because the mean of its divisors is an integer number (56449148805).

Almost surely, 2^{1321123342304} is an apocalyptic number.

It is an amenable number.

1321123342304 is an abundant number, since it is smaller than the sum of its proper divisors (1388435800336).

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

1321123342304 is a wasteful number, since it uses less digits than its factorization.

1321123342304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17067123 (or 17067115 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 1321123342304 its reverse (4032433211231), we get a palindrome (5353556553535).

The spelling of 1321123342304 in words is "one trillion, three hundred twenty-one billion, one hundred twenty-three million, three hundred forty-two thousand, three hundred four".