321404211231401 has 4 divisors (see below), whose sum is σ = 321407025324372. Its totient is φ = 321401397138432.

The previous prime is 321404211231307. The next prime is 321404211231413. The reversal of 321404211231401 is 104132112404123.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4785746893225 + 316618464338176 = 2187635^2 + 17793776^2 .

It is a cyclic number.

It is not a de Polignac number, because 321404211231401 - 2²² = 321404207037097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321404211239401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1406875160 + ... + 1407103593.

It is an arithmetic number, because the mean of its divisors is an integer number (80351756331093).

Almost surely, 2^{321404211231401} is an apocalyptic number.

It is an amenable number.

321404211231401 is a deficient number, since it is larger than the sum of its proper divisors (2814092971).

321404211231401 is a wasteful number, since it uses less digits than its factorization.

321404211231401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814092970.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 321404211231401 its reverse (104132112404123), we get a palindrome (425536323635524).

The spelling of 321404211231401 in words is "three hundred twenty-one trillion, four hundred four billion, two hundred eleven million, two hundred thirty-one thousand, four hundred one".