321440212147 has 2 divisors, whose sum is σ = 321440212148. Its totient is φ = 321440212146.

The previous prime is 321440212127. The next prime is 321440212187. The reversal of 321440212147 is 741212044123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321440212147 - 2²³ = 321431823539 is a prime.

It is not a weakly prime, because it can be changed into another prime (321440212117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160720106073 + 160720106074.

It is an arithmetic number, because the mean of its divisors is an integer number (160720106074).

Almost surely, 2^321440212147 is an apocalyptic number.

321440212147 is a deficient number, since it is larger than the sum of its proper divisors (1).

321440212147 is an equidigital number, since it uses as much as digits as its factorization.

321440212147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 31.

The spelling of 321440212147 in words is "three hundred twenty-one billion, four hundred forty million, two hundred twelve thousand, one hundred forty-seven".