1388206328101 has 16 divisors (see below), whose sum is σ = 1418018551488. Its totient is φ = 1358740656000.

The previous prime is 1388206328099. The next prime is 1388206328191. The reversal of 1388206328101 is 1018236028831.

It is a cyclic number.

It is not a de Polignac number, because 1388206328101 - 2¹ = 1388206328099 is a prime.

It is a super-2 number, since 2×1388206328101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388206328191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6428455 + ... + 6640891.

It is an arithmetic number, because the mean of its divisors is an integer number (88626159468).

Almost surely, 2^{1388206328101} is an apocalyptic number.

It is an amenable number.

1388206328101 is a deficient number, since it is larger than the sum of its proper divisors (29812223387).

1388206328101 is a wasteful number, since it uses less digits than its factorization.

1388206328101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213252.

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 1388206328101 in words is "one trillion, three hundred eighty-eight billion, two hundred six million, three hundred twenty-eight thousand, one hundred one".