1321230210001 has 16 divisors (see below), whose sum is σ = 1436819005440. Its totient is φ = 1207637421120.

The previous prime is 1321230209953. The next prime is 1321230210019. The reversal of 1321230210001 is 1000120321231.

It is not a de Polignac number, because 1321230210001 - 2¹⁷ = 1321230078929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321230210031) 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 15 ways as a sum of consecutive naturals, for example, 15381111 + ... + 15466771.

It is an arithmetic number, because the mean of its divisors is an integer number (89801187840).

Almost surely, 2^{1321230210001} is an apocalyptic number.

It is an amenable number.

1321230210001 is a deficient number, since it is larger than the sum of its proper divisors (115588795439).

1321230210001 is a wasteful number, since it uses less digits than its factorization.

1321230210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97296.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1321230210001 its reverse (1000120321231), we get a palindrome (2321350531232).

The spelling of 1321230210001 in words is "one trillion, three hundred twenty-one billion, two hundred thirty million, two hundred ten thousand, one".