68340123 has 6 divisors (see below), whose sum is σ = 98713524. Its totient is φ = 45560076.

The previous prime is 68340109. The next prime is 68340137. The reversal of 68340123 is 32104386.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68340109) and next prime (68340137).

It is not a de Polignac number, because 68340123 - 2⁹ = 68339611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68340193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3796665 + ... + 3796682.

It is an arithmetic number, because the mean of its divisors is an integer number (16452254).

Almost surely, 2^68340123 is an apocalyptic number.

68340123 is a deficient number, since it is larger than the sum of its proper divisors (30373401).

68340123 is a wasteful number, since it uses less digits than its factorization.

68340123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7593353 (or 7593350 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 68340123 is about 8266.8085135680. The cubic root of 68340123 is about 408.8449006707.

The spelling of 68340123 in words is "sixty-eight million, three hundred forty thousand, one hundred twenty-three".