1312321423304 has 16 divisors (see below), whose sum is σ = 2464112811420. Its totient is φ = 655224673600.

The previous prime is 1312321423279. The next prime is 1312321423307. The reversal of 1312321423304 is 4033241232131.

It can be written as a sum of positive squares in 2 ways, for example, as 1292609824900 + 19711598404 = 1136930^2 + 140398^2 .

It is not an unprimeable number, because it can be changed into a prime (1312321423307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116998799 + ... + 117010014.

Almost surely, 2^{1312321423304} is an apocalyptic number.

It is an amenable number.

1312321423304 is a deficient number, since it is larger than the sum of its proper divisors (1151791388116).

1312321423304 is a wasteful number, since it uses less digits than its factorization.

1312321423304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234009520 (or 234009516 counting only the distinct ones).

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

Adding to 1312321423304 its reverse (4033241232131), we get a palindrome (5345562655435).

The spelling of 1312321423304 in words is "one trillion, three hundred twelve billion, three hundred twenty-one million, four hundred twenty-three thousand, three hundred four".