201011023 has 2 divisors, whose sum is σ = 201011024. Its totient is φ = 201011022.

The previous prime is 201011003. The next prime is 201011029. The reversal of 201011023 is 320110102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201011023 - 2⁵ = 201010991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201011029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100505511 + 100505512.

It is an arithmetic number, because the mean of its divisors is an integer number (100505512).

Almost surely, 2^201011023 is an apocalyptic number.

201011023 is a deficient number, since it is larger than the sum of its proper divisors (1).

201011023 is an equidigital number, since it uses as much as digits as its factorization.

201011023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 201011023 is about 14177.8356246643. The cubic root of 201011023 is about 585.7873082210.

Adding to 201011023 its reverse (320110102), we get a palindrome (521121125).

The spelling of 201011023 in words is "two hundred one million, eleven thousand, twenty-three".