243103122 has 48 divisors (see below), whose sum is σ = 533744640. Its totient is φ = 79963296.

The previous prime is 243103057. The next prime is 243103139. The reversal of 243103122 is 221301342.

It is a super-2 number, since 2×243103122² = 118198255852293768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 243103095 and 243103104.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 634543 + ... + 634925.

It is an arithmetic number, because the mean of its divisors is an integer number (11119680).

Almost surely, 2^243103122 is an apocalyptic number.

243103122 is an abundant number, since it is smaller than the sum of its proper divisors (290641518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243103122 is a wasteful number, since it uses less digits than its factorization.

243103122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767 (or 764 counting only the distinct ones).

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

The square root of 243103122 is about 15591.7645569705. The cubic root of 243103122 is about 624.1134070260.

Adding to 243103122 its reverse (221301342), we get a palindrome (464404464).

The spelling of 243103122 in words is "two hundred forty-three million, one hundred three thousand, one hundred twenty-two".