321025200149 has 2 divisors, whose sum is σ = 321025200150. Its totient is φ = 321025200148.

The previous prime is 321025200107. The next prime is 321025200161. The reversal of 321025200149 is 941002520123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244215849124 + 76809351025 = 494182^2 + 277145^2 .

It is a cyclic number.

It is not a de Polignac number, because 321025200149 - 2⁸ = 321025199893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321025200449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160512600074 + 160512600075.

It is an arithmetic number, because the mean of its divisors is an integer number (160512600075).

Almost surely, 2^321025200149 is an apocalyptic number.

It is an amenable number.

321025200149 is a deficient number, since it is larger than the sum of its proper divisors (1).

321025200149 is an equidigital number, since it uses as much as digits as its factorization.

321025200149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 321025200149 in words is "three hundred twenty-one billion, twenty-five million, two hundred thousand, one hundred forty-nine".