231303142223 has 2 divisors, whose sum is σ = 231303142224. Its totient is φ = 231303142222.

The previous prime is 231303142201. The next prime is 231303142271. The reversal of 231303142223 is 322241303132.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231303142223 - 2¹² = 231303138127 is a prime.

It is a super-2 number, since 2×231303142223² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231303142192 and 231303142201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231303142523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115651571111 + 115651571112.

It is an arithmetic number, because the mean of its divisors is an integer number (115651571112).

Almost surely, 2^231303142223 is an apocalyptic number.

231303142223 is a deficient number, since it is larger than the sum of its proper divisors (1).

231303142223 is an equidigital number, since it uses as much as digits as its factorization.

231303142223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 231303142223 its reverse (322241303132), we get a palindrome (553544445355).

The spelling of 231303142223 in words is "two hundred thirty-one billion, three hundred three million, one hundred forty-two thousand, two hundred twenty-three".