231213202 has 8 divisors (see below), whose sum is σ = 378348912. Its totient is φ = 105096900.

The previous prime is 231213161. The next prime is 231213211. The reversal of 231213202 is 202312132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5254824 + ... + 5254867.

It is an arithmetic number, because the mean of its divisors is an integer number (47293614).

Almost surely, 2^231213202 is an apocalyptic number.

231213202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231213202 is a deficient number, since it is larger than the sum of its proper divisors (147135710).

231213202 is a wasteful number, since it uses less digits than its factorization.

231213202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10509704.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 231213202 is about 15205.6963668225. The cubic root of 231213202 is about 613.7679540627.

Adding to 231213202 its reverse (202312132), we get a palindrome (433525334).

The spelling of 231213202 in words is "two hundred thirty-one million, two hundred thirteen thousand, two hundred two".