122724031 has 2 divisors, whose sum is σ = 122724032. Its totient is φ = 122724030.

The previous prime is 122724013. The next prime is 122724047. The reversal of 122724031 is 130427221.

Together with previous prime (122724013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122724031 - 2¹⁹ = 122199743 is a prime.

It is a super-2 number, since 2×122724031² = 30122375569777922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122723993 and 122724011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122704031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61362015 + 61362016.

It is an arithmetic number, because the mean of its divisors is an integer number (61362016).

Almost surely, 2^122724031 is an apocalyptic number.

122724031 is a deficient number, since it is larger than the sum of its proper divisors (1).

122724031 is an equidigital number, since it uses as much as digits as its factorization.

122724031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 122724031 is about 11078.0878765245. The cubic root of 122724031 is about 496.9467681680.

The spelling of 122724031 in words is "one hundred twenty-two million, seven hundred twenty-four thousand, thirty-one".