200042123231 has 2 divisors, whose sum is σ = 200042123232. Its totient is φ = 200042123230.

The previous prime is 200042123201. The next prime is 200042123249. The reversal of 200042123231 is 132321240002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200042123231 - 2²⁶ = 199975014367 is a prime.

It is a super-2 number, since 2×200042123231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200042123201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100021061615 + 100021061616.

It is an arithmetic number, because the mean of its divisors is an integer number (100021061616).

Almost surely, 2^200042123231 is an apocalyptic number.

200042123231 is a deficient number, since it is larger than the sum of its proper divisors (1).

200042123231 is an equidigital number, since it uses as much as digits as its factorization.

200042123231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 200042123231 its reverse (132321240002), we get a palindrome (332363363233).

The spelling of 200042123231 in words is "two hundred billion, forty-two million, one hundred twenty-three thousand, two hundred thirty-one".