124402411021 has 4 divisors (see below), whose sum is σ = 142174184032. Its totient is φ = 106630638012.

The previous prime is 124402410967. The next prime is 124402411033. The reversal of 124402411021 is 120114204421.

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.

It is a cyclic number.

It is not a de Polignac number, because 124402411021 - 2¹¹ = 124402408973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124402410983 and 124402411001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124402421021) 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, 8885886495 + ... + 8885886508.

It is an arithmetic number, because the mean of its divisors is an integer number (35543546008).

Almost surely, 2^124402411021 is an apocalyptic number.

It is an amenable number.

124402411021 is a deficient number, since it is larger than the sum of its proper divisors (17771773011).

124402411021 is an equidigital number, since it uses as much as digits as its factorization.

124402411021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17771773010.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 124402411021 its reverse (120114204421), we get a palindrome (244516615442).

The spelling of 124402411021 in words is "one hundred twenty-four billion, four hundred two million, four hundred eleven thousand, twenty-one".