13212101291 has 2 divisors, whose sum is σ = 13212101292. Its totient is φ = 13212101290.

The previous prime is 13212101281. The next prime is 13212101311. The reversal of 13212101291 is 19210121231.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13212101291 is a prime.

It is not a weakly prime, because it can be changed into another prime (13212101251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606050645 + 6606050646.

It is an arithmetic number, because the mean of its divisors is an integer number (6606050646).

Almost surely, 2^13212101291 is an apocalyptic number.

13212101291 is a deficient number, since it is larger than the sum of its proper divisors (1).

13212101291 is an equidigital number, since it uses as much as digits as its factorization.

13212101291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 13212101291 in words is "thirteen billion, two hundred twelve million, one hundred one thousand, two hundred ninety-one".