1320220032000 has 176 divisors, whose sum is σ = 4391548186272. Its totient is φ = 352058572800.

The previous prime is 1320220031987. The next prime is 1320220032007. The reversal of 1320220032000 is 2300220231.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320220032007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1335037 + ... + 2103036.

Almost surely, 2^{1320220032000} is an apocalyptic number.

1320220032000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320220032000 is an abundant number, since it is smaller than the sum of its proper divisors (3071328154272).

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

1320220032000 is an equidigital number, since it uses as much as digits as its factorization.

1320220032000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3438111 (or 3438083 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 1320220032000 its reverse (2300220231), we get a palindrome (1322520252231).

The spelling of 1320220032000 in words is "one trillion, three hundred twenty billion, two hundred twenty million, thirty-two thousand".