124131013 has 2 divisors, whose sum is σ = 124131014. Its totient is φ = 124131012.

The previous prime is 124131001. The next prime is 124131019. The reversal of 124131013 is 310131421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79602084 + 44528929 = 8922^2 + 6673^2 .

It is a cyclic number.

It is not a de Polignac number, because 124131013 - 2¹³ = 124122821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124131019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62065506 + 62065507.

It is an arithmetic number, because the mean of its divisors is an integer number (62065507).

Almost surely, 2^124131013 is an apocalyptic number.

It is an amenable number.

124131013 is a deficient number, since it is larger than the sum of its proper divisors (1).

124131013 is an equidigital number, since it uses as much as digits as its factorization.

124131013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 124131013 is about 11141.4098299991. The cubic root of 124131013 is about 498.8386553121.

Adding to 124131013 its reverse (310131421), we get a palindrome (434262434).

The spelling of 124131013 in words is "one hundred twenty-four million, one hundred thirty-one thousand, thirteen".