1321234400401 has 8 divisors (see below), whose sum is σ = 1324297180800. Its totient is φ = 1318171862400.

The previous prime is 1321234400389. The next prime is 1321234400411. The reversal of 1321234400401 is 1040044321231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321234400401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321234400411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15392001 + ... + 15477601.

It is an arithmetic number, because the mean of its divisors is an integer number (165537147600).

Almost surely, 2^{1321234400401} is an apocalyptic number.

It is an amenable number.

1321234400401 is a deficient number, since it is larger than the sum of its proper divisors (3062780399).

1321234400401 is an equidigital number, since it uses as much as digits as its factorization.

1321234400401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121199.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1321234400401 its reverse (1040044321231), we get a palindrome (2361278721632).

The spelling of 1321234400401 in words is "one trillion, three hundred twenty-one billion, two hundred thirty-four million, four hundred thousand, four hundred one".