1231114541 has 2 divisors, whose sum is σ = 1231114542. Its totient is φ = 1231114540.

The previous prime is 1231114531. The next prime is 1231114603. The reversal of 1231114541 is 1454111321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 999192100 + 231922441 = 31610^2 + 15229^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231114541 - 2⁶ = 1231114477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231114531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615557270 + 615557271.

It is an arithmetic number, because the mean of its divisors is an integer number (615557271).

Almost surely, 2^1231114541 is an apocalyptic number.

It is an amenable number.

1231114541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231114541 is an equidigital number, since it uses as much as digits as its factorization.

1231114541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 23.

The square root of 1231114541 is about 35087.2418551245. The cubic root of 1231114541 is about 1071.7647940040.

Adding to 1231114541 its reverse (1454111321), we get a palindrome (2685225862).

The spelling of 1231114541 in words is "one billion, two hundred thirty-one million, one hundred fourteen thousand, five hundred forty-one".