1320321021030 has 96 divisors (see below), whose sum is σ = 3874045462560. Its totient is φ = 309040650240.

The previous prime is 1320321021011. The next prime is 1320321021031. The reversal of 1320321021030 is 301201230231.

1320321021030 is a `hidden beast` number, since 1 + 320 + 321 + 0 + 21 + 0 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1320321020994 and 1320321021012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320321021031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22965387 + ... + 23022806.

It is an arithmetic number, because the mean of its divisors is an integer number (40354640235).

Almost surely, 2^{1320321021030} is an apocalyptic number.

1320321021030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320321021030 is an abundant number, since it is smaller than the sum of its proper divisors (2553724441530).

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

1320321021030 is a wasteful number, since it uses less digits than its factorization.

1320321021030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45988246 (or 45988243 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1320321021030 its reverse (301201230231), we get a palindrome (1621522251261).

The spelling of 1320321021030 in words is "one trillion, three hundred twenty billion, three hundred twenty-one million, twenty-one thousand, thirty".