243420122 has 32 divisors (see below), whose sum is σ = 413157888. Its totient is φ = 106560000.

The previous prime is 243420101. The next prime is 243420137. The reversal of 243420122 is 221024342.

243420122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 243420094 and 243420103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163622 + ... + 165102.

It is an arithmetic number, because the mean of its divisors is an integer number (12911184).

Almost surely, 2^243420122 is an apocalyptic number.

243420122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243420122 is a deficient number, since it is larger than the sum of its proper divisors (169737766).

243420122 is a wasteful number, since it uses less digits than its factorization.

243420122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 243420122 is about 15601.9268681788. The cubic root of 243420122 is about 624.3845649558.

Adding to 243420122 its reverse (221024342), we get a palindrome (464444464).

The spelling of 243420122 in words is "two hundred forty-three million, four hundred twenty thousand, one hundred twenty-two".