20131203223 has 2 divisors, whose sum is σ = 20131203224. Its totient is φ = 20131203222.

The previous prime is 20131203179. The next prime is 20131203229. The reversal of 20131203223 is 32230213102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20131203223 - 2¹⁷ = 20131072151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20131203223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20131203229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065601611 + 10065601612.

It is an arithmetic number, because the mean of its divisors is an integer number (10065601612).

Almost surely, 2^20131203223 is an apocalyptic number.

20131203223 is a deficient number, since it is larger than the sum of its proper divisors (1).

20131203223 is an equidigital number, since it uses as much as digits as its factorization.

20131203223 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 19.

Adding to 20131203223 its reverse (32230213102), we get a palindrome (52361416325).

The spelling of 20131203223 in words is "twenty billion, one hundred thirty-one million, two hundred three thousand, two hundred twenty-three".