201020231023 has 2 divisors, whose sum is σ = 201020231024. Its totient is φ = 201020231022.

The previous prime is 201020230997. The next prime is 201020231039. The reversal of 201020231023 is 320132020102.

It is an a-pointer prime, because the next prime (201020231039) can be obtained adding 201020231023 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201020231023 - 2²⁵ = 200986676591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201020230988 and 201020231006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201020231123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510115511 + 100510115512.

It is an arithmetic number, because the mean of its divisors is an integer number (100510115512).

Almost surely, 2^201020231023 is an apocalyptic number.

201020231023 is a deficient number, since it is larger than the sum of its proper divisors (1).

201020231023 is an equidigital number, since it uses as much as digits as its factorization.

201020231023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 201020231023 its reverse (320132020102), we get a palindrome (521152251125).

The spelling of 201020231023 in words is "two hundred one billion, twenty million, two hundred thirty-one thousand, twenty-three".