1242032302420 has 192 divisors, whose sum is σ = 3393657146880. Its totient is φ = 370793521152.

The previous prime is 1242032302409. The next prime is 1242032302531. The reversal of 1242032302420 is 242032302421.

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 63 ways as a sum of consecutive naturals, for example, 7980064 + ... + 8134216.

It is an arithmetic number, because the mean of its divisors is an integer number (17675297640).

Almost surely, 2^{1242032302420} is an apocalyptic number.

1242032302420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242032302420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1696828573440).

1242032302420 is an abundant number, since it is smaller than the sum of its proper divisors (2151624844460).

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

1242032302420 is a wasteful number, since it uses less digits than its factorization.

1242032302420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154434 (or 154432 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 1242032302420 its reverse (242032302421), we get a palindrome (1484064604841).

Subtracting from 1242032302420 its reverse (242032302421), we obtain a palindrome (999999999999).

The spelling of 1242032302420 in words is "one trillion, two hundred forty-two billion, thirty-two million, three hundred two thousand, four hundred twenty".