20000231203223 has 32 divisors (see below), whose sum is σ = 20649856798080. Its totient is φ = 19362636633600.

The previous prime is 20000231203193. The next prime is 20000231203247. The reversal of 20000231203223 is 32230213200002.

It is a cyclic number.

It is not a de Polignac number, because 20000231203223 - 2¹² = 20000231199127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000231203195 and 20000231203204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000231503223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1679415593 + ... + 1679427501.

It is an arithmetic number, because the mean of its divisors is an integer number (645308024940).

Almost surely, 2^{20000231203223} is an apocalyptic number.

20000231203223 is a deficient number, since it is larger than the sum of its proper divisors (649625594857).

20000231203223 is a wasteful number, since it uses less digits than its factorization.

20000231203223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13499.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20000231203223 its reverse (32230213200002), we get a palindrome (52230444403225).

The spelling of 20000231203223 in words is "twenty trillion, two hundred thirty-one million, two hundred three thousand, two hundred twenty-three".