202231322123 has 2 divisors, whose sum is σ = 202231322124. Its totient is φ = 202231322122.

The previous prime is 202231322107. The next prime is 202231322191. The reversal of 202231322123 is 321223132202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202231322123 - 2⁴ = 202231322107 is a prime.

It is not a weakly prime, because it can be changed into another prime (202231322323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101115661061 + 101115661062.

It is an arithmetic number, because the mean of its divisors is an integer number (101115661062).

Almost surely, 2^202231322123 is an apocalyptic number.

202231322123 is a deficient number, since it is larger than the sum of its proper divisors (1).

202231322123 is an equidigital number, since it uses as much as digits as its factorization.

202231322123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 202231322123 its reverse (321223132202), we get a palindrome (523454454325).

The spelling of 202231322123 in words is "two hundred two billion, two hundred thirty-one million, three hundred twenty-two thousand, one hundred twenty-three".