1241320231 has 4 divisors (see below), whose sum is σ = 1252708600. Its totient is φ = 1229931864.

The previous prime is 1241320219. The next prime is 1241320247. The reversal of 1241320231 is 1320231421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1241320231 is a prime.

It is a super-2 number, since 2×1241320231² = 3081751831779786722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1241320199 and 1241320208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241320271) 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, 5694021 + ... + 5694238.

It is an arithmetic number, because the mean of its divisors is an integer number (313177150).

Almost surely, 2^1241320231 is an apocalyptic number.

1241320231 is a deficient number, since it is larger than the sum of its proper divisors (11388369).

1241320231 is a wasteful number, since it uses less digits than its factorization.

1241320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11388368.

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

The square root of 1241320231 is about 35232.3747567489. The cubic root of 1241320231 is about 1074.7182188442.

Adding to 1241320231 its reverse (1320231421), we get a palindrome (2561551652).

The spelling of 1241320231 in words is "one billion, two hundred forty-one million, three hundred twenty thousand, two hundred thirty-one".