1320730804542 has 64 divisors (see below), whose sum is σ = 2801085027840. Its totient is φ = 413718825984.

The previous prime is 1320730804499. The next prime is 1320730804543. The reversal of 1320730804542 is 2454080370231.

It is a self number, because there is not a number n which added to its sum of digits gives 1320730804542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320730804543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248115093 + ... + 248120415.

It is an arithmetic number, because the mean of its divisors is an integer number (43766953560).

Almost surely, 2^{1320730804542} is an apocalyptic number.

1320730804542 is an abundant number, since it is smaller than the sum of its proper divisors (1480354223298).

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

1320730804542 is a wasteful number, since it uses less digits than its factorization.

1320730804542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8577.

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 1320730804542 in words is "one trillion, three hundred twenty billion, seven hundred thirty million, eight hundred four thousand, five hundred forty-two".