124340022020 has 24 divisors (see below), whose sum is σ = 261202593624. Its totient is φ = 49719142656.

The previous prime is 124340022013. The next prime is 124340022049. The reversal of 124340022020 is 20220043421.

It can be written as a sum of positive squares in 4 ways, for example, as 58509804544 + 65830217476 = 241888^2 + 256574^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 124340021983 and 124340022001.

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 7 ways as a sum of consecutive naturals, for example, 993599 + ... + 1111718.

It is an arithmetic number, because the mean of its divisors is an integer number (10883441401).

Almost surely, 2^124340022020 is an apocalyptic number.

124340022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124340022020 is an abundant number, since it is smaller than the sum of its proper divisors (136862571604).

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

124340022020 is a wasteful number, since it uses less digits than its factorization.

124340022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108279 (or 2108277 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 124340022020 its reverse (20220043421), we get a palindrome (144560065441).

The spelling of 124340022020 in words is "one hundred twenty-four billion, three hundred forty million, twenty-two thousand, twenty".