20103293 has 16 divisors (see below), whose sum is σ = 23950080. Its totient is φ = 16509696.

The previous prime is 20103289. The next prime is 20103301. The reversal of 20103293 is 39230102.

It is not a de Polignac number, because 20103293 - 2² = 20103289 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103203) 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, 33605 + ... + 34197.

It is an arithmetic number, because the mean of its divisors is an integer number (1496880).

Almost surely, 2^20103293 is an apocalyptic number.

It is an amenable number.

20103293 is a deficient number, since it is larger than the sum of its proper divisors (3846787).

20103293 is a wasteful number, since it uses less digits than its factorization.

20103293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 20103293 is about 4483.6695908597. The cubic root of 20103293 is about 271.9082600433.

Adding to 20103293 its reverse (39230102), we get a palindrome (59333395).

The spelling of 20103293 in words is "twenty million, one hundred three thousand, two hundred ninety-three".