321022401011287 has 2 divisors, whose sum is σ = 321022401011288. Its totient is φ = 321022401011286.

The previous prime is 321022401011239. The next prime is 321022401011423. The reversal of 321022401011287 is 782110104220123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321022401011287 - 2⁷ = 321022401011159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321022401018287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160511200505643 + 160511200505644.

It is an arithmetic number, because the mean of its divisors is an integer number (160511200505644).

Almost surely, 2^{321022401011287} is an apocalyptic number.

321022401011287 is a deficient number, since it is larger than the sum of its proper divisors (1).

321022401011287 is an equidigital number, since it uses as much as digits as its factorization.

321022401011287 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 34.

The spelling of 321022401011287 in words is "three hundred twenty-one trillion, twenty-two billion, four hundred one million, eleven thousand, two hundred eighty-seven".