124445544421 has 16 divisors (see below), whose sum is σ = 139583275776. Its totient is φ = 109965600000.

The previous prime is 124445544383. The next prime is 124445544439.

124445544421 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 124445544421 - 2²¹ = 124443447269 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 (124445542421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386880 + ... + 631321.

It is an arithmetic number, because the mean of its divisors is an integer number (8723954736).

Almost surely, 2^124445544421 is an apocalyptic number.

124445544421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124445544421 is a deficient number, since it is larger than the sum of its proper divisors (15137731355).

124445544421 is a wasteful number, since it uses less digits than its factorization.

124445544421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018524.

The product of its digits is 409600, while the sum is 40.

It can be divided in two parts, 124445 and 544421, that added together give a palindrome (668866).

The spelling of 124445544421 in words is "one hundred twenty-four billion, four hundred forty-five million, five hundred forty-four thousand, four hundred twenty-one".