1241533231 has 2 divisors, whose sum is σ = 1241533232. Its totient is φ = 1241533230.

The previous prime is 1241533151. The next prime is 1241533253. The reversal of 1241533231 is 1323351421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1241533231 is a prime.

It is a super-2 number, since 2×1241533231² = 3082809527354598722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1241533196 and 1241533205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1241533831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620766615 + 620766616.

It is an arithmetic number, because the mean of its divisors is an integer number (620766616).

Almost surely, 2^1241533231 is an apocalyptic number.

1241533231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241533231 is an equidigital number, since it uses as much as digits as its factorization.

1241533231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 1241533231 is about 35235.3974150995. The cubic root of 1241533231 is about 1074.7796861655.

Adding to 1241533231 its reverse (1323351421), we get a palindrome (2564884652).

The spelling of 1241533231 in words is "one billion, two hundred forty-one million, five hundred thirty-three thousand, two hundred thirty-one".