1321023952360 has 256 divisors, whose sum is σ = 3634315776000. Its totient is φ = 422078791680.

The previous prime is 1321023952357. The next prime is 1321023952447. The reversal of 1321023952360 is 632593201231.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 176391496 + ... + 176398984.

It is an arithmetic number, because the mean of its divisors is an integer number (14196546000).

Almost surely, 2^{1321023952360} is an apocalyptic number.

1321023952360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1321023952360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1817157888000).

1321023952360 is an abundant number, since it is smaller than the sum of its proper divisors (2313291823640).

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

1321023952360 is a wasteful number, since it uses less digits than its factorization.

1321023952360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8064 (or 8060 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 37.

The spelling of 1321023952360 in words is "one trillion, three hundred twenty-one billion, twenty-three million, nine hundred fifty-two thousand, three hundred sixty".