840386013101 has 4 divisors (see below), whose sum is σ = 840453369600. Its totient is φ = 840318656604.

The previous prime is 840386013053. The next prime is 840386013119. The reversal of 840386013101 is 101310683048.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 840386013101 - 2³⁸ = 565508106157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840386013121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33659531 + ... + 33684488.

It is an arithmetic number, because the mean of its divisors is an integer number (210113342400).

Almost surely, 2^840386013101 is an apocalyptic number.

It is an amenable number.

840386013101 is a deficient number, since it is larger than the sum of its proper divisors (67356499).

840386013101 is a wasteful number, since it uses less digits than its factorization.

840386013101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67356498.

The product of its (nonzero) digits is 13824, while the sum is 35.

Adding to 840386013101 its reverse (101310683048), we get a palindrome (941696696149).

The spelling of 840386013101 in words is "eight hundred forty billion, three hundred eighty-six million, thirteen thousand, one hundred one".