20858733103 has 4 divisors (see below), whose sum is σ = 22463251048. Its totient is φ = 19254215160.

The previous prime is 20858733101. The next prime is 20858733113. The reversal of 20858733103 is 30133785802.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30133785802 = 2 ⋅15066892901.

It is a cyclic number.

It is not a de Polignac number, because 20858733103 - 2¹ = 20858733101 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 (20858733101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802258953 + ... + 802258978.

It is an arithmetic number, because the mean of its divisors is an integer number (5615812762).

Almost surely, 2^20858733103 is an apocalyptic number.

20858733103 is a deficient number, since it is larger than the sum of its proper divisors (1604517945).

20858733103 is a wasteful number, since it uses less digits than its factorization.

20858733103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604517944.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 20858733103 in words is "twenty billion, eight hundred fifty-eight million, seven hundred thirty-three thousand, one hundred three".