1242421140213 has 24 divisors (see below), whose sum is σ = 2060794238880. Its totient is φ = 713351849760.

The previous prime is 1242421140209. The next prime is 1242421140217. The reversal of 1242421140213 is 3120411242421.

1242421140213 is a `hidden beast` number, since 1 + 2 + 4 + 242 + 1 + 1 + 402 + 13 = 666.

It is an interprime number because it is at equal distance from previous prime (1242421140209) and next prime (1242421140217).

It is not a de Polignac number, because 1242421140213 - 2² = 1242421140209 is a prime.

It is a super-2 number, since 2×1242421140213² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242421140217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 330253606 + ... + 330257367.

It is an arithmetic number, because the mean of its divisors is an integer number (85866426620).

Almost surely, 2^{1242421140213} is an apocalyptic number.

It is an amenable number.

1242421140213 is a deficient number, since it is larger than the sum of its proper divisors (818373098667).

1242421140213 is a wasteful number, since it uses less digits than its factorization.

1242421140213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660511009 (or 660511006 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 1242421140213 its reverse (3120411242421), we get a palindrome (4362832382634).

The spelling of 1242421140213 in words is "one trillion, two hundred forty-two billion, four hundred twenty-one million, one hundred forty thousand, two hundred thirteen".