124031213 has 2 divisors, whose sum is σ = 124031214. Its totient is φ = 124031212.

The previous prime is 124031207. The next prime is 124031251. The reversal of 124031213 is 312130421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117462244 + 6568969 = 10838^2 + 2563^2 .

It is a cyclic number.

It is not a de Polignac number, because 124031213 - 2⁴ = 124031197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124031191 and 124031200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124031263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62015606 + 62015607.

It is an arithmetic number, because the mean of its divisors is an integer number (62015607).

Almost surely, 2^124031213 is an apocalyptic number.

It is an amenable number.

124031213 is a deficient number, since it is larger than the sum of its proper divisors (1).

124031213 is an equidigital number, since it uses as much as digits as its factorization.

124031213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 124031213 is about 11136.9301425483. The cubic root of 124031213 is about 498.7049324964.

Adding to 124031213 its reverse (312130421), we get a palindrome (436161634).

The spelling of 124031213 in words is "one hundred twenty-four million, thirty-one thousand, two hundred thirteen".