124210110121 has 4 divisors (see below), whose sum is σ = 127239625044. Its totient is φ = 121180595200.

The previous prime is 124210110119. The next prime is 124210110131. The reversal of 124210110121 is 121011012421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2523555225 + 121686554896 = 50235^2 + 348836^2 .

It is a cyclic number.

It is not a de Polignac number, because 124210110121 - 2¹ = 124210110119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124210110095 and 124210110104.

It is not an unprimeable number, because it can be changed into a prime (124210110131) 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, 1514757400 + ... + 1514757481.

It is an arithmetic number, because the mean of its divisors is an integer number (31809906261).

Almost surely, 2^124210110121 is an apocalyptic number.

It is an amenable number.

124210110121 is a deficient number, since it is larger than the sum of its proper divisors (3029514923).

124210110121 is an equidigital number, since it uses as much as digits as its factorization.

124210110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3029514922.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 124210110121 its reverse (121011012421), we get a palindrome (245221122542).

The spelling of 124210110121 in words is "one hundred twenty-four billion, two hundred ten million, one hundred ten thousand, one hundred twenty-one".