123124031 has 2 divisors, whose sum is σ = 123124032. Its totient is φ = 123124030.

The previous prime is 123124021. The next prime is 123124061. The reversal of 123124031 is 130421321.

It is a weak prime.

It is an emirp because it is prime and its reverse (130421321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123124031 is a prime.

It is a super-2 number, since 2×123124031² = 30319054019377922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123124021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61562015 + 61562016.

It is an arithmetic number, because the mean of its divisors is an integer number (61562016).

Almost surely, 2^123124031 is an apocalyptic number.

123124031 is a deficient number, since it is larger than the sum of its proper divisors (1).

123124031 is an equidigital number, since it uses as much as digits as its factorization.

123124031 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 123124031 is about 11096.1268467876. The cubic root of 123124031 is about 497.4860896930.

Adding to 123124031 its reverse (130421321), we get a palindrome (253545352).

The spelling of 123124031 in words is "one hundred twenty-three million, one hundred twenty-four thousand, thirty-one".