20181000023 has 2 divisors, whose sum is σ = 20181000024. Its totient is φ = 20181000022.

The previous prime is 20181000011. The next prime is 20181000029. The reversal of 20181000023 is 32000018102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20181000023 - 2⁸ = 20180999767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20180999965 and 20181000010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20181000029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10090500011 + 10090500012.

It is an arithmetic number, because the mean of its divisors is an integer number (10090500012).

Almost surely, 2^20181000023 is an apocalyptic number.

20181000023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20181000023 is an equidigital number, since it uses as much as digits as its factorization.

20181000023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20181000023 its reverse (32000018102), we get a palindrome (52181018125).

The spelling of 20181000023 in words is "twenty billion, one hundred eighty-one million, twenty-three", and thus it is an aban number.