213120112291 has 2 divisors, whose sum is σ = 213120112292. Its totient is φ = 213120112290.

The previous prime is 213120112273. The next prime is 213120112393. The reversal of 213120112291 is 192211021312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213120112291 - 2⁵ = 213120112259 is a prime.

It is not a weakly prime, because it can be changed into another prime (213120112691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106560056145 + 106560056146.

It is an arithmetic number, because the mean of its divisors is an integer number (106560056146).

Almost surely, 2^213120112291 is an apocalyptic number.

213120112291 is a deficient number, since it is larger than the sum of its proper divisors (1).

213120112291 is an equidigital number, since it uses as much as digits as its factorization.

213120112291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 213120112291 in words is "two hundred thirteen billion, one hundred twenty million, one hundred twelve thousand, two hundred ninety-one".