201231002123023 has 2 divisors, whose sum is σ = 201231002123024. Its totient is φ = 201231002123022.

The previous prime is 201231002122993. The next prime is 201231002123069. The reversal of 201231002123023 is 320321200132102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201231002123023 - 2¹⁷ = 201231001991951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201231002122985 and 201231002123003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201231002129023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100615501061511 + 100615501061512.

It is an arithmetic number, because the mean of its divisors is an integer number (100615501061512).

Almost surely, 2^{201231002123023} is an apocalyptic number.

201231002123023 is a deficient number, since it is larger than the sum of its proper divisors (1).

201231002123023 is an equidigital number, since it uses as much as digits as its factorization.

201231002123023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 201231002123023 its reverse (320321200132102), we get a palindrome (521552202255125).

The spelling of 201231002123023 in words is "two hundred one trillion, two hundred thirty-one billion, two million, one hundred twenty-three thousand, twenty-three".