20010023223 has 16 divisors (see below), whose sum is σ = 28479801600. Its totient is φ = 12459908160.

The previous prime is 20010023219. The next prime is 20010023233. The reversal of 20010023223 is 32232001002.

It is not a de Polignac number, because 20010023223 - 2² = 20010023219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010023233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2468158 + ... + 2476251.

It is an arithmetic number, because the mean of its divisors is an integer number (1779987600).

Almost surely, 2^20010023223 is an apocalyptic number.

20010023223 is a deficient number, since it is larger than the sum of its proper divisors (8469778377).

20010023223 is a wasteful number, since it uses less digits than its factorization.

20010023223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4944502.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20010023223 its reverse (32232001002), we get a palindrome (52242024225).

It can be divided in two parts, 2001002 and 3223, that multiplied together give a palindrome (6449229446).

The spelling of 20010023223 in words is "twenty billion, ten million, twenty-three thousand, two hundred twenty-three".