231120210203 has 2 divisors, whose sum is σ = 231120210204. Its totient is φ = 231120210202.

The previous prime is 231120210157. The next prime is 231120210247. The reversal of 231120210203 is 302012021132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231120210203 - 2²² = 231116015899 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (231120210263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115560105101 + 115560105102.

It is an arithmetic number, because the mean of its divisors is an integer number (115560105102).

Almost surely, 2^231120210203 is an apocalyptic number.

231120210203 is a deficient number, since it is larger than the sum of its proper divisors (1).

231120210203 is an equidigital number, since it uses as much as digits as its factorization.

231120210203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 231120210203 its reverse (302012021132), we get a palindrome (533132231335).

The spelling of 231120210203 in words is "two hundred thirty-one billion, one hundred twenty million, two hundred ten thousand, two hundred three".