1320212851520 has 56 divisors (see below), whose sum is σ = 3147077276064. Its totient is φ = 527527379456.

The previous prime is 1320212851519. The next prime is 1320212851543. The reversal of 1320212851520 is 251582120231.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1875242 + ... + 2481321.

Almost surely, 2^{1320212851520} is an apocalyptic number.

1320212851520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320212851520 is an abundant number, since it is smaller than the sum of its proper divisors (1826864424544).

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

1320212851520 is an equidigital number, since it uses as much as digits as its factorization.

1320212851520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4357527 (or 4357517 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 1320212851520 its reverse (251582120231), we get a palindrome (1571794971751).

The spelling of 1320212851520 in words is "one trillion, three hundred twenty billion, two hundred twelve million, eight hundred fifty-one thousand, five hundred twenty".