1210421304007 has 4 divisors (see below), whose sum is σ = 1211102465776. Its totient is φ = 1209740142240.

The previous prime is 1210421303963. The next prime is 1210421304013. The reversal of 1210421304007 is 7004031240121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1210421304007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210421304097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340578219 + ... + 340581772.

It is an arithmetic number, because the mean of its divisors is an integer number (302775616444).

Almost surely, 2^{1210421304007} is an apocalyptic number.

1210421304007 is a deficient number, since it is larger than the sum of its proper divisors (681161769).

1210421304007 is an equidigital number, since it uses as much as digits as its factorization.

1210421304007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681161768.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 1210421304007 its reverse (7004031240121), we get a palindrome (8214452544128).

The spelling of 1210421304007 in words is "one trillion, two hundred ten billion, four hundred twenty-one million, three hundred four thousand, seven".