1321330021230 has 32 divisors (see below), whose sum is σ = 3209399190144. Its totient is φ = 348109434656.

The previous prime is 1321330021199. The next prime is 1321330021241. The reversal of 1321330021230 is 321200331231.

It is a junction number, because it is equal to n+sod(n) for n = 1321330021197 and 1321330021206.

It is a congruent number.

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, 265324824 + ... + 265329803.

It is an arithmetic number, because the mean of its divisors is an integer number (100293724692).

Almost surely, 2^{1321330021230} is an apocalyptic number.

1321330021230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321330021230 is an abundant number, since it is smaller than the sum of its proper divisors (1888069168914).

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

1321330021230 is a wasteful number, since it uses less digits than its factorization.

1321330021230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530654720.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1321330021230 its reverse (321200331231), we get a palindrome (1642530352461).

The spelling of 1321330021230 in words is "one trillion, three hundred twenty-one billion, three hundred thirty million, twenty-one thousand, two hundred thirty".