1321470492552 has 128 divisors (see below), whose sum is σ = 4198702291200. Its totient is φ = 377242790400.

The previous prime is 1321470492541. The next prime is 1321470492553. The reversal of 1321470492552 is 2552940741231.

1321470492552 is a `hidden beast` number, since 1 + 3 + 2 + 1 + 4 + 7 + 0 + 4 + 92 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1321470492498 and 1321470492507.

It is not an unprimeable number, because it can be changed into a prime (1321470492553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1415652 + ... + 2155692.

It is an arithmetic number, because the mean of its divisors is an integer number (32802361650).

Almost surely, 2^{1321470492552} is an apocalyptic number.

1321470492552 is a gapful number since it is divisible by the number (12) 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 1321470492552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2099351145600).

1321470492552 is an abundant number, since it is smaller than the sum of its proper divisors (2877231798648).

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

1321470492552 is a wasteful number, since it uses less digits than its factorization.

1321470492552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741244 (or 741234 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 1321470492552 in words is "one trillion, three hundred twenty-one billion, four hundred seventy million, four hundred ninety-two thousand, five hundred fifty-two".