124211013 has 4 divisors (see below), whose sum is σ = 165614688. Its totient is φ = 82807340.

The previous prime is 124211011. The next prime is 124211029. The reversal of 124211013 is 310112421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310112421 = 3 ⋅103370807.

It is a cyclic number.

It is not a de Polignac number, because 124211013 - 2¹ = 124211011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124210983 and 124211001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124211011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20701833 + ... + 20701838.

It is an arithmetic number, because the mean of its divisors is an integer number (41403672).

Almost surely, 2^124211013 is an apocalyptic number.

It is an amenable number.

124211013 is a deficient number, since it is larger than the sum of its proper divisors (41403675).

124211013 is an equidigital number, since it uses as much as digits as its factorization.

124211013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41403674.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 124211013 is about 11144.9994616420. Note that the first 3 decimals coincide. The cubic root of 124211013 is about 498.9457962042.

Adding to 124211013 its reverse (310112421), we get a palindrome (434323434).

The spelling of 124211013 in words is "one hundred twenty-four million, two hundred eleven thousand, thirteen".