342012123 has 6 divisors (see below), whose sum is σ = 494017524. Its totient is φ = 228008076.

The previous prime is 342012113. The next prime is 342012173. The reversal of 342012123 is 321210243.

It is not a de Polignac number, because 342012123 - 2⁶ = 342012059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 342012096 and 342012105.

It is not an unprimeable number, because it can be changed into a prime (342012113) 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, 19000665 + ... + 19000682.

It is an arithmetic number, because the mean of its divisors is an integer number (82336254).

Almost surely, 2^342012123 is an apocalyptic number.

342012123 is a deficient number, since it is larger than the sum of its proper divisors (152005401).

342012123 is a wasteful number, since it uses less digits than its factorization.

342012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38001353 (or 38001350 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 342012123 is about 18493.5697743837. The cubic root of 342012123 is about 699.3273286273.

Adding to 342012123 its reverse (321210243), we get a palindrome (663222366).

The spelling of 342012123 in words is "three hundred forty-two million, twelve thousand, one hundred twenty-three".