124231357 has 2 divisors, whose sum is σ = 124231358. Its totient is φ = 124231356.

The previous prime is 124231321. The next prime is 124231369. The reversal of 124231357 is 753132421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108597241 + 15634116 = 10421^2 + 3954^2 .

It is an emirp because it is prime and its reverse (753132421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124231357 is a prime.

It is a super-2 number, since 2×124231357² = 30866860124122898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124231957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62115678 + 62115679.

It is an arithmetic number, because the mean of its divisors is an integer number (62115679).

Almost surely, 2^124231357 is an apocalyptic number.

It is an amenable number.

124231357 is a deficient number, since it is larger than the sum of its proper divisors (1).

124231357 is an equidigital number, since it uses as much as digits as its factorization.

124231357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 28.

The square root of 124231357 is about 11145.9121205938. The cubic root of 124231357 is about 498.9730347957.

Adding to 124231357 its reverse (753132421), we get a palindrome (877363778).

The spelling of 124231357 in words is "one hundred twenty-four million, two hundred thirty-one thousand, three hundred fifty-seven".