1231023241 has 4 divisors (see below), whose sum is σ = 1406883712. Its totient is φ = 1055162772.

The previous prime is 1231023239. The next prime is 1231023247. The reversal of 1231023241 is 1423201321.

It is a happy number.

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 1231023241 - 2¹ = 1231023239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231023247) 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, 87930225 + ... + 87930238.

It is an arithmetic number, because the mean of its divisors is an integer number (351720928).

Almost surely, 2^1231023241 is an apocalyptic number.

It is an amenable number.

1231023241 is a deficient number, since it is larger than the sum of its proper divisors (175860471).

1231023241 is an equidigital number, since it uses as much as digits as its factorization.

1231023241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175860470.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1231023241 is about 35085.9407882987. The cubic root of 1231023241 is about 1071.7382991649.

Adding to 1231023241 its reverse (1423201321), we get a palindrome (2654224562).

The spelling of 1231023241 in words is "one billion, two hundred thirty-one million, twenty-three thousand, two hundred forty-one".