342220123 has 16 divisors (see below), whose sum is σ = 394865856. Its totient is φ = 290528640.

The previous prime is 342220117. The next prime is 342220147. The reversal of 342220123 is 321022243.

It is a cyclic number.

It is not a de Polignac number, because 342220123 - 2⁵ = 342220091 is a prime.

It is a super-2 number, since 2×342220123² = 234229225172270258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 342220123.

It is not an unprimeable number, because it can be changed into a prime (342220163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 557965 + ... + 558577.

It is an arithmetic number, because the mean of its divisors is an integer number (24679116).

Almost surely, 2^342220123 is an apocalyptic number.

342220123 is a deficient number, since it is larger than the sum of its proper divisors (52645733).

342220123 is a wasteful number, since it uses less digits than its factorization.

342220123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 342220123 is about 18499.1924958902. The cubic root of 342220123 is about 699.4690688334.

Adding to 342220123 its reverse (321022243), we get a palindrome (663242366).

The spelling of 342220123 in words is "three hundred forty-two million, two hundred twenty thousand, one hundred twenty-three".