1242113242420 has 48 divisors (see below), whose sum is σ = 2758036861440. Its totient is φ = 468584770176.

The previous prime is 1242113242333. The next prime is 1242113242453. The reversal of 1242113242420 is 242423112421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7244227 + ... + 7413706.

It is an arithmetic number, because the mean of its divisors is an integer number (57459101280).

Almost surely, 2^{1242113242420} is an apocalyptic number.

1242113242420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242113242420 is an abundant number, since it is smaller than the sum of its proper divisors (1515923619020).

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

1242113242420 is a wasteful number, since it uses less digits than its factorization.

1242113242420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14658184 (or 14658182 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 1242113242420 its reverse (242423112421), we get a palindrome (1484536354841).

The spelling of 1242113242420 in words is "one trillion, two hundred forty-two billion, one hundred thirteen million, two hundred forty-two thousand, four hundred twenty".