1320212011320 has 96 divisors (see below), whose sum is σ = 4449603478320. Its totient is φ = 352056533760.

The previous prime is 1320212011303. The next prime is 1320212011397. The reversal of 1320212011320 is 231102120231.

1320212011320 is a `hidden beast` number, since 1 + 320 + 2 + 1 + 20 + 1 + 1 + 320 = 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 = 1320212011293 and 1320212011302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67902421 + ... + 67921860.

Almost surely, 2^{1320212011320} is an apocalyptic number.

1320212011320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320212011320 is an abundant number, since it is smaller than the sum of its proper divisors (3129391467000).

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

1320212011320 is a wasteful number, since it uses less digits than its factorization.

1320212011320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135824307 (or 135824291 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1320212011320 its reverse (231102120231), we get a palindrome (1551314131551).

The spelling of 1320212011320 in words is "one trillion, three hundred twenty billion, two hundred twelve million, eleven thousand, three hundred twenty".