243233130 has 64 divisors (see below), whose sum is σ = 688693248. Its totient is φ = 53801280.

The previous prime is 243233101. The next prime is 243233141. The reversal of 243233130 is 31332342.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 243233097 and 243233106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12172 + ... + 25191.

It is an arithmetic number, because the mean of its divisors is an integer number (10760832).

Almost surely, 2^243233130 is an apocalyptic number.

243233130 is an abundant number, since it is smaller than the sum of its proper divisors (445460118).

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

243233130 is a wasteful number, since it uses less digits than its factorization.

243233130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37411.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 243233130 is about 15595.9331237345. The cubic root of 243233130 is about 624.2246427783.

Adding to 243233130 its reverse (31332342), we get a palindrome (274565472).

The spelling of 243233130 in words is "two hundred forty-three million, two hundred thirty-three thousand, one hundred thirty".