2111320429 has 2 divisors, whose sum is σ = 2111320430. Its totient is φ = 2111320428.

The previous prime is 2111320427. The next prime is 2111320433. The reversal of 2111320429 is 9240231112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1835694025 + 275626404 = 42845^2 + 16602^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111320429 - 2¹ = 2111320427 is a prime.

Together with 2111320427, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111320427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055660214 + 1055660215.

It is an arithmetic number, because the mean of its divisors is an integer number (1055660215).

Almost surely, 2^2111320429 is an apocalyptic number.

It is an amenable number.

2111320429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111320429 is an equidigital number, since it uses as much as digits as its factorization.

2111320429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2111320429 is about 45949.1069445316. The cubic root of 2111320429 is about 1282.8761069261.

The spelling of 2111320429 in words is "two billion, one hundred eleven million, three hundred twenty thousand, four hundred twenty-nine".