124427724421 has 80 divisors (see below), whose sum is σ = 171328339840. Its totient is φ = 87973776000.

The previous prime is 124427724413. The next prime is 124427724433.

124427724421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 124427724421 - 2³ = 124427724413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124427724461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 81271426 + ... + 81272956.

It is an arithmetic number, because the mean of its divisors is an integer number (2141604248).

Almost surely, 2^124427724421 is an apocalyptic number.

124427724421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124427724421 is a deficient number, since it is larger than the sum of its proper divisors (46900615419).

124427724421 is an equidigital number, since it uses as much as digits as its factorization.

124427724421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656 (or 1623 counting only the distinct ones).

The product of its digits is 200704, while the sum is 40.

It can be divided in two parts, 124427 and 724421, that added together give a palindrome (848848).

The spelling of 124427724421 in words is "one hundred twenty-four billion, four hundred twenty-seven million, seven hundred twenty-four thousand, four hundred twenty-one".