124421420420 has 48 divisors (see below), whose sum is σ = 286282987200. Its totient is φ = 45046561920.

The previous prime is 124421420419. The next prime is 124421420423. The reversal of 124421420420 is 24024124421.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 124421420420.

It is not an unprimeable number, because it can be changed into a prime (124421420423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1184450 + ... + 1285209.

It is an arithmetic number, because the mean of its divisors is an integer number (5964228900).

Almost surely, 2^124421420420 is an apocalyptic number.

124421420420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124421420420 is an abundant number, since it is smaller than the sum of its proper divisors (161861566780).

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

124421420420 is a wasteful number, since it uses less digits than its factorization.

124421420420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469908 (or 2469906 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 124421420420 its reverse (24024124421), we get a palindrome (148445544841).

The spelling of 124421420420 in words is "one hundred twenty-four billion, four hundred twenty-one million, four hundred twenty thousand, four hundred twenty".