2321201210291 has 2 divisors, whose sum is σ = 2321201210292. Its totient is φ = 2321201210290.

The previous prime is 2321201210287. The next prime is 2321201210329. The reversal of 2321201210291 is 1920121021232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2321201210291 - 2² = 2321201210287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2321201210291.

It is not a weakly prime, because it can be changed into another prime (2321201210591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160600605145 + 1160600605146.

It is an arithmetic number, because the mean of its divisors is an integer number (1160600605146).

Almost surely, 2^{2321201210291} is an apocalyptic number.

2321201210291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321201210291 is an equidigital number, since it uses as much as digits as its factorization.

2321201210291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 2321201210291 in words is "two trillion, three hundred twenty-one billion, two hundred one million, two hundred ten thousand, two hundred ninety-one".