124131440340 has 72 divisors (see below), whose sum is σ = 376834185000. Its totient is φ = 33075154944.

The previous prime is 124131440299. The next prime is 124131440351. The reversal of 124131440340 is 43044131421.

124131440340 is a `hidden beast` number, since 1 + 2 + 4 + 1 + 314 + 4 + 0 + 340 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3973537296 + 120157903044 = 63036^2 + 346638^2 .

It is a super-2 number, since 2×124131440340² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 51249 + ... + 500888.

It is an arithmetic number, because the mean of its divisors is an integer number (5233808125).

Almost surely, 2^124131440340 is an apocalyptic number.

124131440340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124131440340 is an abundant number, since it is smaller than the sum of its proper divisors (252702744660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124131440340 is a wasteful number, since it uses less digits than its factorization.

124131440340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553401 (or 553396 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 124131440340 its reverse (43044131421), we get a palindrome (167175571761).

The spelling of 124131440340 in words is "one hundred twenty-four billion, one hundred thirty-one million, four hundred forty thousand, three hundred forty".