124134220040 has 96 divisors (see below), whose sum is σ = 288127660680. Its totient is φ = 48097529856.

The previous prime is 124134220037. The next prime is 124134220081. The reversal of 124134220040 is 40022431421.

It can be written as a sum of positive squares in 12 ways, for example, as 118943593924 + 5190626116 = 344882^2 + 72046^2 .

It is a junction number, because it is equal to n+sod(n) for n = 124134219988 and 124134220015.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 127056032 + ... + 127057008.

Almost surely, 2^124134220040 is an apocalyptic number.

124134220040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124134220040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144063830340).

124134220040 is an abundant number, since it is smaller than the sum of its proper divisors (163993440640).

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

124134220040 is an equidigital number, since it uses as much as digits as its factorization.

124134220040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611 (or 1314 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 124134220040 its reverse (40022431421), we get a palindrome (164156651461).

The spelling of 124134220040 in words is "one hundred twenty-four billion, one hundred thirty-four million, two hundred twenty thousand, forty".