103381993 has 16 divisors (see below), whose sum is σ = 125379072. Its totient is φ = 83952000.

The previous prime is 103381991. The next prime is 103382017. The reversal of 103381993 is 399183301.

It is not a de Polignac number, because 103381993 - 2¹ = 103381991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103381991) 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, 7228 + ... + 16093.

It is an arithmetic number, because the mean of its divisors is an integer number (7836192).

Almost surely, 2^103381993 is an apocalyptic number.

103381993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

103381993 is a deficient number, since it is larger than the sum of its proper divisors (21997079).

103381993 is a wasteful number, since it uses less digits than its factorization.

103381993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23376.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 103381993 is about 10167.6935929443. The cubic root of 103381993 is about 469.3335854885. Note that the first 3 decimals are identical.

The spelling of 103381993 in words is "one hundred three million, three hundred eighty-one thousand, nine hundred ninety-three".