20012201023 has 2 divisors, whose sum is σ = 20012201024. Its totient is φ = 20012201022.

The previous prime is 20012200979. The next prime is 20012201029. The reversal of 20012201023 is 32010221002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20012201023 - 2⁹ = 20012200511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20012200994 and 20012201012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012201029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006100511 + 10006100512.

It is an arithmetic number, because the mean of its divisors is an integer number (10006100512).

Almost surely, 2^20012201023 is an apocalyptic number.

20012201023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012201023 is an equidigital number, since it uses as much as digits as its factorization.

20012201023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20012201023 its reverse (32010221002), we get a palindrome (52022422025).

The spelling of 20012201023 in words is "twenty billion, twelve million, two hundred one thousand, twenty-three".