1321023022401 has 8 divisors (see below), whose sum is σ = 1761383820960. Its totient is φ = 880672119392.

The previous prime is 1321023022357. The next prime is 1321023022471. The reversal of 1321023022401 is 1042203201231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1321023022401 - 2¹⁰ = 1321023021377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321023022471) 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 7 ways as a sum of consecutive naturals, for example, 2156580 + ... + 2700533.

It is an arithmetic number, because the mean of its divisors is an integer number (220172977620).

Almost surely, 2^{1321023022401} is an apocalyptic number.

It is an amenable number.

1321023022401 is a deficient number, since it is larger than the sum of its proper divisors (440360798559).

1321023022401 is an equidigital number, since it uses as much as digits as its factorization.

1321023022401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4947775.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1321023022401 its reverse (1042203201231), we get a palindrome (2363226223632).

The spelling of 1321023022401 in words is "one trillion, three hundred twenty-one billion, twenty-three million, twenty-two thousand, four hundred one".