42123210319 has 2 divisors, whose sum is σ = 42123210320. Its totient is φ = 42123210318.

The previous prime is 42123210301. The next prime is 42123210329. The reversal of 42123210319 is 91301232124.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42123210319 - 2⁷ = 42123210191 is a prime.

It is a super-4 number, since 4×42123210319⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42123210329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21061605159 + 21061605160.

It is an arithmetic number, because the mean of its divisors is an integer number (21061605160).

Almost surely, 2^42123210319 is an apocalyptic number.

42123210319 is a deficient number, since it is larger than the sum of its proper divisors (1).

42123210319 is an equidigital number, since it uses as much as digits as its factorization.

42123210319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 42123210319 in words is "forty-two billion, one hundred twenty-three million, two hundred ten thousand, three hundred nineteen".