211202413391 has 2 divisors, whose sum is σ = 211202413392. Its totient is φ = 211202413390.

The previous prime is 211202413381. The next prime is 211202413451. The reversal of 211202413391 is 193314202112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211202413391 is a prime.

It is a super-2 number, since 2×211202413391² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211202413381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105601206695 + 105601206696.

It is an arithmetic number, because the mean of its divisors is an integer number (105601206696).

Almost surely, 2^211202413391 is an apocalyptic number.

211202413391 is a deficient number, since it is larger than the sum of its proper divisors (1).

211202413391 is an equidigital number, since it uses as much as digits as its factorization.

211202413391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 211202413391 in words is "two hundred eleven billion, two hundred two million, four hundred thirteen thousand, three hundred ninety-one".