1201330012320 has 120 divisors (see below), whose sum is σ = 4239693880884. Its totient is φ = 320354666496.

The previous prime is 1201330012319. The next prime is 1201330012339. The reversal of 1201330012320 is 232100331021.

1201330012320 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 330 + 0 + 12 + 320 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1163524654224 + 37805358096 = 1078668^2 + 194436^2 .

It is a tau number, because it is divible by the number of its divisors (120).

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 = 1201330012293 and 1201330012302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 46334649 + ... + 46360568.

Almost surely, 2^{1201330012320} is an apocalyptic number.

1201330012320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201330012320 is an abundant number, since it is smaller than the sum of its proper divisors (3038363868564).

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

1201330012320 is an equidigital number, since it uses as much as digits as its factorization.

1201330012320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92695244 (or 92695227 counting only the distinct ones).

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

Adding to 1201330012320 its reverse (232100331021), we get a palindrome (1433430343341).

The spelling of 1201330012320 in words is "one trillion, two hundred one billion, three hundred thirty million, twelve thousand, three hundred twenty".