231012141 has 4 divisors (see below), whose sum is σ = 308016192. Its totient is φ = 154008092.

The previous prime is 231012113. The next prime is 231012143. The reversal of 231012141 is 141210132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231012141 - 2⁵ = 231012109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231012141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231012143) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 38502021 + ... + 38502026.

It is an arithmetic number, because the mean of its divisors is an integer number (77004048).

Almost surely, 2^231012141 is an apocalyptic number.

It is an amenable number.

231012141 is a deficient number, since it is larger than the sum of its proper divisors (77004051).

231012141 is an equidigital number, since it uses as much as digits as its factorization.

231012141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77004050.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 231012141 is about 15199.0835578991. The cubic root of 231012141 is about 613.5899933675.

Adding to 231012141 its reverse (141210132), we get a palindrome (372222273).

The spelling of 231012141 in words is "two hundred thirty-one million, twelve thousand, one hundred forty-one".