1021232321201 has 6 divisors (see below), whose sum is σ = 1031443653606. Its totient is φ = 1011121100000.

The previous prime is 1021232321191. The next prime is 1021232321257.

1021232321201 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 3 ways, for example, as 581557234801 + 439675086400 = 762599^2 + 663080^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1021232321201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1021232321101) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 50045300 + ... + 50065701.

It is an arithmetic number, because the mean of its divisors is an integer number (171907275601).

Almost surely, 2^{1021232321201} is an apocalyptic number.

It is an amenable number.

1021232321201 is a deficient number, since it is larger than the sum of its proper divisors (10211332405).

1021232321201 is an equidigital number, since it uses as much as digits as its factorization.

1021232321201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100111203 (or 100111102 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 1021232321201 in words is "one trillion, twenty-one billion, two hundred thirty-two million, three hundred twenty-one thousand, two hundred one".