42134300123 has 2 divisors, whose sum is σ = 42134300124. Its totient is φ = 42134300122.

The previous prime is 42134300119. The next prime is 42134300147. The reversal of 42134300123 is 32100343124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42134300123 - 2² = 42134300119 is a prime.

It is not a weakly prime, because it can be changed into another prime (42134300113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21067150061 + 21067150062.

It is an arithmetic number, because the mean of its divisors is an integer number (21067150062).

Almost surely, 2^42134300123 is an apocalyptic number.

42134300123 is a deficient number, since it is larger than the sum of its proper divisors (1).

42134300123 is an equidigital number, since it uses as much as digits as its factorization.

42134300123 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 42134300123 its reverse (32100343124), we get a palindrome (74234643247).

The spelling of 42134300123 in words is "forty-two billion, one hundred thirty-four million, three hundred thousand, one hundred twenty-three".