124380931 has 2 divisors, whose sum is σ = 124380932. Its totient is φ = 124380930.

The previous prime is 124380929. The next prime is 124380937. The reversal of 124380931 is 139083421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124380931 - 2¹ = 124380929 is a prime.

It is a super-2 number, since 2×124380931² = 30941231992853522, which contains 22 as substring.

Together with 124380929, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 124380893 and 124380902.

It is not a weakly prime, because it can be changed into another prime (124380937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62190465 + 62190466.

It is an arithmetic number, because the mean of its divisors is an integer number (62190466).

Almost surely, 2^124380931 is an apocalyptic number.

124380931 is a deficient number, since it is larger than the sum of its proper divisors (1).

124380931 is an equidigital number, since it uses as much as digits as its factorization.

124380931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 124380931 is about 11152.6199164143. The cubic root of 124380931 is about 499.1732082511.

The spelling of 124380931 in words is "one hundred twenty-four million, three hundred eighty thousand, nine hundred thirty-one".