20596123 has 2 divisors, whose sum is σ = 20596124. Its totient is φ = 20596122.

The previous prime is 20596111. The next prime is 20596139. The reversal of 20596123 is 32169502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20596123 - 2⁵ = 20596091 is a prime.

It is a super-2 number, since 2×20596123² = 848400565262258, which contains 22 as substring.

It is equal to p_1305991 and since 20596123 and 1305991 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 20596091 and 20596100.

It is not a weakly prime, because it can be changed into another prime (20593123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10298061 + 10298062.

It is an arithmetic number, because the mean of its divisors is an integer number (10298062).

Almost surely, 2^20596123 is an apocalyptic number.

20596123 is a deficient number, since it is larger than the sum of its proper divisors (1).

20596123 is an equidigital number, since it uses as much as digits as its factorization.

20596123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 20596123 is about 4538.2951644863. The cubic root of 20596123 is about 274.1122801595.

The spelling of 20596123 in words is "twenty million, five hundred ninety-six thousand, one hundred twenty-three".