1320220312134 has 64 divisors (see below), whose sum is σ = 2794209116160. Its totient is φ = 414695129760.

The previous prime is 1320220312129. The next prime is 1320220312181. The reversal of 1320220312134 is 4312130220231.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 31273389 + ... + 31315575.

It is an arithmetic number, because the mean of its divisors is an integer number (43659517440).

Almost surely, 2^{1320220312134} is an apocalyptic number.

1320220312134 is an abundant number, since it is smaller than the sum of its proper divisors (1473988804026).

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

1320220312134 is a wasteful number, since it uses less digits than its factorization.

1320220312134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43665.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1320220312134 its reverse (4312130220231), we get a palindrome (5632350532365).

The spelling of 1320220312134 in words is "one trillion, three hundred twenty billion, two hundred twenty million, three hundred twelve thousand, one hundred thirty-four".