1242421430404 has 72 divisors (see below), whose sum is σ = 2769326340480. Its totient is φ = 482273870400.

The previous prime is 1242421430389. The next prime is 1242421430501. The reversal of 1242421430404 is 4040341242421.

It is a happy number.

It is a super-2 number, since 2×1242421430404² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 478939 + ... + 1647490.

It is an arithmetic number, because the mean of its divisors is an integer number (38462865840).

Almost surely, 2^{1242421430404} is an apocalyptic number.

1242421430404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1242421430404 is an abundant number, since it is smaller than the sum of its proper divisors (1526904910076).

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

1242421430404 is a wasteful number, since it uses less digits than its factorization.

1242421430404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126729 (or 2126720 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 1242421430404 its reverse (4040341242421), we get a palindrome (5282762672825).

The spelling of 1242421430404 in words is "one trillion, two hundred forty-two billion, four hundred twenty-one million, four hundred thirty thousand, four hundred four".