124431101 has 4 divisors (see below), whose sum is σ = 124989312. Its totient is φ = 123872892.

The previous prime is 124431079. The next prime is 124431113. The reversal of 124431101 is 101134421.

It is a happy number.

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: 101134421 = 83 ⋅1218487.

It is a cyclic number.

It is not a de Polignac number, because 124431101 - 2²² = 120236797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124431101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124431161) 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, 278771 + ... + 279216.

It is an arithmetic number, because the mean of its divisors is an integer number (31247328).

Almost surely, 2^124431101 is an apocalyptic number.

It is an amenable number.

124431101 is a deficient number, since it is larger than the sum of its proper divisors (558211).

124431101 is an equidigital number, since it uses as much as digits as its factorization.

124431101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558210.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 124431101 is about 11154.8689369262. The cubic root of 124431101 is about 499.2403143400.

Adding to 124431101 its reverse (101134421), we get a palindrome (225565522).

The spelling of 124431101 in words is "one hundred twenty-four million, four hundred thirty-one thousand, one hundred one".