20701023 has 16 divisors (see below), whose sum is σ = 32315136. Its totient is φ = 11540160.

The previous prime is 20701001. The next prime is 20701027. The reversal of 20701023 is 32010702.

It is not a de Polignac number, because 20701023 - 2¹⁴ = 20684639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20700993 and 20701011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20701027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11161 + ... + 12882.

It is an arithmetic number, because the mean of its divisors is an integer number (2019696).

Almost surely, 2^20701023 is an apocalyptic number.

20701023 is a deficient number, since it is larger than the sum of its proper divisors (11614113).

20701023 is a wasteful number, since it uses less digits than its factorization.

20701023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24094.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 20701023 is about 4549.8376894127. The cubic root of 20701023 is about 274.5768611014.

Adding to 20701023 its reverse (32010702), we get a palindrome (52711725).

The spelling of 20701023 in words is "twenty million, seven hundred one thousand, twenty-three".