20750751383 has 4 divisors (see below), whose sum is σ = 21142275048. Its totient is φ = 20359227720.

The previous prime is 20750751377. The next prime is 20750751451. The reversal of 20750751383 is 38315705702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38315705702 = 2 ⋅19157852851.

It is a cyclic number.

It is not a de Polignac number, because 20750751383 - 2¹⁰ = 20750750359 is a prime.

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 20750751383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20750751353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195761753 + ... + 195761858.

It is an arithmetic number, because the mean of its divisors is an integer number (5285568762).

Almost surely, 2^20750751383 is an apocalyptic number.

20750751383 is a deficient number, since it is larger than the sum of its proper divisors (391523665).

20750751383 is an equidigital number, since it uses as much as digits as its factorization.

20750751383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391523664.

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 20750751383 in words is "twenty billion, seven hundred fifty million, seven hundred fifty-one thousand, three hundred eighty-three".