1320321323154 has 32 divisors (see below), whose sum is σ = 2678801486976. Its totient is φ = 433751776640.

The previous prime is 1320321323147. The next prime is 1320321323173. The reversal of 1320321323154 is 4513231230231.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 624964 + ... + 1741040.

It is an arithmetic number, because the mean of its divisors is an integer number (83712546468).

Almost surely, 2^{1320321323154} is an apocalyptic number.

1320321323154 is an abundant number, since it is smaller than the sum of its proper divisors (1358480163822).

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

1320321323154 is a wasteful number, since it uses less digits than its factorization.

1320321323154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118930.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 1320321323154 its reverse (4513231230231), we get a palindrome (5833552553385).

The spelling of 1320321323154 in words is "one trillion, three hundred twenty billion, three hundred twenty-one million, three hundred twenty-three thousand, one hundred fifty-four".