1321112031304 has 16 divisors (see below), whose sum is σ = 2667630063420. Its totient is φ = 609744014400.

The previous prime is 1321112031251. The next prime is 1321112031341. The reversal of 1321112031304 is 4031302111231.

It can be written as a sum of positive squares in 2 ways, for example, as 1320683624100 + 428407204 = 1149210^2 + 20698^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6351500047 + ... + 6351500254.

Almost surely, 2^{1321112031304} is an apocalyptic number.

It is an amenable number.

1321112031304 is an abundant number, since it is smaller than the sum of its proper divisors (1346518032116).

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

1321112031304 is a wasteful number, since it uses less digits than its factorization.

1321112031304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12703000320 (or 12703000316 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1321112031304 its reverse (4031302111231), we get a palindrome (5352414142535).

The spelling of 1321112031304 in words is "one trillion, three hundred twenty-one billion, one hundred twelve million, thirty-one thousand, three hundred four".