231141213 has 12 divisors (see below), whose sum is σ = 351443040. Its totient is φ = 145983816.

The previous prime is 231141187. The next prime is 231141217. The reversal of 231141213 is 312141132.

It is not a de Polignac number, because 231141213 - 2⁵ = 231141181 is a prime.

It is a super-2 number, since 2×231141213² = 106852520694222738, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231141217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 675681 + ... + 676022.

It is an arithmetic number, because the mean of its divisors is an integer number (29286920).

Almost surely, 2^231141213 is an apocalyptic number.

It is an amenable number.

231141213 is a deficient number, since it is larger than the sum of its proper divisors (120301827).

231141213 is a wasteful number, since it uses less digits than its factorization.

231141213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351728 (or 1351725 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 231141213 is about 15203.3290104503. The cubic root of 231141213 is about 613.7042478854.

Adding to 231141213 its reverse (312141132), we get a palindrome (543282345).

The spelling of 231141213 in words is "two hundred thirty-one million, one hundred forty-one thousand, two hundred thirteen".