121423412024420 has 48 divisors (see below), whose sum is σ = 280360313468928. Its totient is φ = 43806298959360.

The previous prime is 121423412024417. The next prime is 121423412024423. The reversal of 121423412024420 is 24420214324121.

It is an interprime number because it is at equal distance from previous prime (121423412024417) and next prime (121423412024423).

It is not an unprimeable number, because it can be changed into a prime (121423412024423) 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, 2172903557 + ... + 2172959436.

It is an arithmetic number, because the mean of its divisors is an integer number (5840839863936).

Almost surely, 2^{121423412024420} is an apocalyptic number.

121423412024420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121423412024420 is an abundant number, since it is smaller than the sum of its proper divisors (158936901444508).

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

121423412024420 is a wasteful number, since it uses less digits than its factorization.

121423412024420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4345863140 (or 4345863138 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 121423412024420 its reverse (24420214324121), we get a palindrome (145843626348541).

The spelling of 121423412024420 in words is "one hundred twenty-one trillion, four hundred twenty-three billion, four hundred twelve million, twenty-four thousand, four hundred twenty".