123421411420 has 24 divisors (see below), whose sum is σ = 259207203024. Its totient is φ = 49364328576.

The previous prime is 123421411417. The next prime is 123421411423. The reversal of 123421411420 is 24114124321.

It is an interprime number because it is at equal distance from previous prime (123421411417) and next prime (123421411423).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123421411423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20329 + ... + 497248.

It is an arithmetic number, because the mean of its divisors is an integer number (10800300126).

Almost surely, 2^123421411420 is an apocalyptic number.

123421411420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123421411420 is an abundant number, since it is smaller than the sum of its proper divisors (135785791604).

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

123421411420 is a wasteful number, since it uses less digits than its factorization.

123421411420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529509 (or 529507 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 123421411420 its reverse (24114124321), we get a palindrome (147535535741).

The spelling of 123421411420 in words is "one hundred twenty-three billion, four hundred twenty-one million, four hundred eleven thousand, four hundred twenty".