1320411212660 has 12 divisors (see below), whose sum is σ = 2772863546628. Its totient is φ = 528164485056.

The previous prime is 1320411212623. The next prime is 1320411212669. The reversal of 1320411212660 is 662121140231.

It can be written as a sum of positive squares in 2 ways, for example, as 725593905124 + 594817307536 = 851818^2 + 771244^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320411212669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33010280297 + ... + 33010280336.

It is an arithmetic number, because the mean of its divisors is an integer number (231071962219).

Almost surely, 2^{1320411212660} is an apocalyptic number.

1320411212660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320411212660 is an abundant number, since it is smaller than the sum of its proper divisors (1452452333968).

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

1320411212660 is a wasteful number, since it uses less digits than its factorization.

1320411212660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66020560642 (or 66020560640 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 1320411212660 its reverse (662121140231), we get a palindrome (1982532352891).

The spelling of 1320411212660 in words is "one trillion, three hundred twenty billion, four hundred eleven million, two hundred twelve thousand, six hundred sixty".