124136631421 has 8 divisors (see below), whose sum is σ = 135434787264. Its totient is φ = 112840643520.

The previous prime is 124136631407. The next prime is 124136631427.

124136631421 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 124136631421 - 2⁹ = 124136630909 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 (124136631427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421081 + ... + 652366.

It is an arithmetic number, because the mean of its divisors is an integer number (16929348408).

Almost surely, 2^124136631421 is an apocalyptic number.

124136631421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124136631421 is a deficient number, since it is larger than the sum of its proper divisors (11298155843).

124136631421 is a wasteful number, since it uses less digits than its factorization.

124136631421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083971.

The product of its digits is 20736, while the sum is 34.

It can be divided in two parts, 124136 and 631421, that added together give a palindrome (755557).

The spelling of 124136631421 in words is "one hundred twenty-four billion, one hundred thirty-six million, six hundred thirty-one thousand, four hundred twenty-one".