321463142361221 has 16 divisors (see below), whose sum is σ = 372724530837120. Its totient is φ = 271556443572480.

The previous prime is 321463142361217. The next prime is 321463142361227. The reversal of 321463142361221 is 122163241364123.

It is a cyclic number.

It is not a de Polignac number, because 321463142361221 - 2² = 321463142361217 is a prime.

It is a super-2 number, since 2×321463142361221² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321463142361227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840186920 + ... + 840569441.

It is an arithmetic number, because the mean of its divisors is an integer number (23295283177320).

Almost surely, 2^{321463142361221} is an apocalyptic number.

It is an amenable number.

321463142361221 is a deficient number, since it is larger than the sum of its proper divisors (51261388475899).

321463142361221 is a wasteful number, since it uses less digits than its factorization.

321463142361221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680756764.

The product of its digits is 248832, while the sum is 41.

The spelling of 321463142361221 in words is "three hundred twenty-one trillion, four hundred sixty-three billion, one hundred forty-two million, three hundred sixty-one thousand, two hundred twenty-one".