124205131 has 2 divisors, whose sum is σ = 124205132. Its totient is φ = 124205130.

The previous prime is 124205117. The next prime is 124205167. The reversal of 124205131 is 131502421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124205131 - 2⁵ = 124205099 is a prime.

It is a super-2 number, since 2×124205131² = 30853829133454322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 124205099 and 124205108.

It is not a weakly prime, because it can be changed into another prime (124205531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62102565 + 62102566.

It is an arithmetic number, because the mean of its divisors is an integer number (62102566).

Almost surely, 2^124205131 is an apocalyptic number.

124205131 is a deficient number, since it is larger than the sum of its proper divisors (1).

124205131 is an equidigital number, since it uses as much as digits as its factorization.

124205131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 124205131 is about 11144.7355733548. The cubic root of 124205131 is about 498.9379202372.

Adding to 124205131 its reverse (131502421), we get a palindrome (255707552).

The spelling of 124205131 in words is "one hundred twenty-four million, two hundred five thousand, one hundred thirty-one".