2001023010263 has 2 divisors, whose sum is σ = 2001023010264. Its totient is φ = 2001023010262.

The previous prime is 2001023010257. The next prime is 2001023010307. The reversal of 2001023010263 is 3620103201002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2001023010263 - 2¹² = 2001023006167 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001023010463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000511505131 + 1000511505132.

It is an arithmetic number, because the mean of its divisors is an integer number (1000511505132).

Almost surely, 2^{2001023010263} is an apocalyptic number.

2001023010263 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001023010263 is an equidigital number, since it uses as much as digits as its factorization.

2001023010263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2001023010263 its reverse (3620103201002), we get a palindrome (5621126211265).

The spelling of 2001023010263 in words is "two trillion, one billion, twenty-three million, ten thousand, two hundred sixty-three".