321001022100139 has 2 divisors, whose sum is σ = 321001022100140. Its totient is φ = 321001022100138.

The previous prime is 321001022099977. The next prime is 321001022100149. The reversal of 321001022100139 is 931001220100123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321001022100139 - 2¹¹ = 321001022098091 is a prime.

It is not a weakly prime, because it can be changed into another prime (321001022100149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160500511050069 + 160500511050070.

It is an arithmetic number, because the mean of its divisors is an integer number (160500511050070).

Almost surely, 2^{321001022100139} is an apocalyptic number.

321001022100139 is a deficient number, since it is larger than the sum of its proper divisors (1).

321001022100139 is an equidigital number, since it uses as much as digits as its factorization.

321001022100139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 321001022100139 in words is "three hundred twenty-one trillion, one billion, twenty-two million, one hundred thousand, one hundred thirty-nine".