124321403 has 2 divisors, whose sum is σ = 124321404. Its totient is φ = 124321402.

The previous prime is 124321397. The next prime is 124321423. The reversal of 124321403 is 304123421.

It is an a-pointer prime, because the next prime (124321423) can be obtained adding 124321403 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124321403 - 2⁴ = 124321387 is a prime.

It is a super-2 number, since 2×124321403² = 30911622487776818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (124321423) 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, 62160701 + 62160702.

It is an arithmetic number, because the mean of its divisors is an integer number (62160702).

Almost surely, 2^124321403 is an apocalyptic number.

124321403 is a deficient number, since it is larger than the sum of its proper divisors (1).

124321403 is an equidigital number, since it uses as much as digits as its factorization.

124321403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 124321403 is about 11149.9508070664. The cubic root of 124321403 is about 499.0935617323.

Adding to 124321403 its reverse (304123421), we get a palindrome (428444824).

The spelling of 124321403 in words is "one hundred twenty-four million, three hundred twenty-one thousand, four hundred three".