124355031420 has 24 divisors (see below), whose sum is σ = 348194088144. Its totient is φ = 33161341696.

The previous prime is 124355031377. The next prime is 124355031473. The reversal of 124355031420 is 24130553421.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 1036291869 + ... + 1036291988.

It is an arithmetic number, because the mean of its divisors is an integer number (14508087006).

Almost surely, 2^124355031420 is an apocalyptic number.

124355031420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124355031420 is an abundant number, since it is smaller than the sum of its proper divisors (223839056724).

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

124355031420 is a wasteful number, since it uses less digits than its factorization.

124355031420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072583869 (or 2072583867 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 124355031420 its reverse (24130553421), we get a palindrome (148485584841).

The spelling of 124355031420 in words is "one hundred twenty-four billion, three hundred fifty-five million, thirty-one thousand, four hundred twenty".