124441411021 has 4 divisors (see below), whose sum is σ = 124449761500. Its totient is φ = 124433060544.

The previous prime is 124441410941. The next prime is 124441411033. The reversal of 124441411021 is 120114144421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120114144421 = 29 ⋅4141867049.

It can be written as a sum of positive squares in 2 ways, for example, as 91938729796 + 32502681225 = 303214^2 + 180285^2 .

It is a cyclic number.

It is not a de Polignac number, because 124441411021 - 2⁷ = 124441410893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124441411421) 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, 4152846 + ... + 4182703.

It is an arithmetic number, because the mean of its divisors is an integer number (31112440375).

Almost surely, 2^124441411021 is an apocalyptic number.

It is an amenable number.

124441411021 is a deficient number, since it is larger than the sum of its proper divisors (8350479).

124441411021 is an equidigital number, since it uses as much as digits as its factorization.

124441411021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8350478.

The product of its (nonzero) digits is 1024, while the sum is 25.

Adding to 124441411021 its reverse (120114144421), we get a palindrome (244555555442).

The spelling of 124441411021 in words is "one hundred twenty-four billion, four hundred forty-one million, four hundred eleven thousand, twenty-one".