124321121 has 4 divisors (see below), whose sum is σ = 124343472. Its totient is φ = 124298772.

The previous prime is 124321091. The next prime is 124321133. The reversal of 124321121 is 121123421.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 124321121 - 2¹⁴ = 124304737 is a prime.

It is a super-2 number, since 2×124321121² = 30911482253393282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 124321121.

It is not an unprimeable number, because it can be changed into a prime (124321321) 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, 4466 + ... + 16388.

It is an arithmetic number, because the mean of its divisors is an integer number (31085868).

Almost surely, 2^124321121 is an apocalyptic number.

It is an amenable number.

124321121 is a deficient number, since it is larger than the sum of its proper divisors (22351).

124321121 is a wasteful number, since it uses less digits than its factorization.

124321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22350.

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

The square root of 124321121 is about 11149.9381612635. The cubic root of 124321121 is about 499.0931843651.

Adding to 124321121 its reverse (121123421), we get a palindrome (245444542).

The spelling of 124321121 in words is "one hundred twenty-four million, three hundred twenty-one thousand, one hundred twenty-one".