103785981365 has 16 divisors (see below), whose sum is σ = 136299381696. Its totient is φ = 75239548800.

The previous prime is 103785981353. The next prime is 103785981367. The reversal of 103785981365 is 563189587301.

It is not a de Polignac number, because 103785981365 - 2⁶ = 103785981301 is a prime.

It is a super-2 number, since 2×103785981365² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103785981365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103785981367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2997191 + ... + 3031620.

It is an arithmetic number, because the mean of its divisors is an integer number (8518711356).

Almost surely, 2^103785981365 is an apocalyptic number.

It is an amenable number.

103785981365 is a deficient number, since it is larger than the sum of its proper divisors (32513400331).

103785981365 is a wasteful number, since it uses less digits than its factorization.

103785981365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6029140.

The product of its (nonzero) digits is 5443200, while the sum is 56.

The spelling of 103785981365 in words is "one hundred three billion, seven hundred eighty-five million, nine hundred eighty-one thousand, three hundred sixty-five".