1331235041 has 2 divisors, whose sum is σ = 1331235042. Its totient is φ = 1331235040.

The previous prime is 1331235029. The next prime is 1331235049. The reversal of 1331235041 is 1405321331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1000140625 + 331094416 = 31625^2 + 18196^2 .

It is an emirp because it is prime and its reverse (1405321331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1331235041 - 2¹⁸ = 1330972897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1331234998 and 1331235016.

It is not a weakly prime, because it can be changed into another prime (1331235049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665617520 + 665617521.

It is an arithmetic number, because the mean of its divisors is an integer number (665617521).

Almost surely, 2^1331235041 is an apocalyptic number.

It is an amenable number.

1331235041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331235041 is an equidigital number, since it uses as much as digits as its factorization.

1331235041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1331235041 is about 36486.0938029820. The cubic root of 1331235041 is about 1100.0647457758.

Adding to 1331235041 its reverse (1405321331), we get a palindrome (2736556372).

The spelling of 1331235041 in words is "one billion, three hundred thirty-one million, two hundred thirty-five thousand, forty-one".