2111343797 has 2 divisors, whose sum is σ = 2111343798. Its totient is φ = 2111343796.

The previous prime is 2111343769. The next prime is 2111343833. The reversal of 2111343797 is 7973431112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2011163716 + 100180081 = 44846^2 + 10009^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111343797 - 2²⁴ = 2094566581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2111343797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2110343797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055671898 + 1055671899.

It is an arithmetic number, because the mean of its divisors is an integer number (1055671899).

Almost surely, 2^2111343797 is an apocalyptic number.

It is an amenable number.

2111343797 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111343797 is an equidigital number, since it uses as much as digits as its factorization.

2111343797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 38.

The square root of 2111343797 is about 45949.3612251574. The cubic root of 2111343797 is about 1282.8808398471.

The spelling of 2111343797 in words is "two billion, one hundred eleven million, three hundred forty-three thousand, seven hundred ninety-seven".