1000322121320 has 64 divisors (see below), whose sum is σ = 2305876280400. Its totient is φ = 390326302720.

The previous prime is 1000322121313. The next prime is 1000322121341. The reversal of 1000322121320 is 231212230001.

It can be written as a sum of positive squares in 8 ways, for example, as 229343294404 + 770978826916 = 478898^2 + 878054^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17534282 + ... + 17591238.

Almost surely, 2^{1000322121320} is an apocalyptic number.

1000322121320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000322121320 is an abundant number, since it is smaller than the sum of its proper divisors (1305554159080).

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

1000322121320 is a wasteful number, since it uses less digits than its factorization.

1000322121320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67718 (or 67714 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1000322121320 its reverse (231212230001), we get a palindrome (1231534351321).

The spelling of 1000322121320 in words is "one trillion, three hundred twenty-two million, one hundred twenty-one thousand, three hundred twenty".