2126217307 has 2 divisors, whose sum is σ = 2126217308. Its totient is φ = 2126217306.

The previous prime is 2126217299. The next prime is 2126217323. The reversal of 2126217307 is 7037126212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2126217307 - 2³ = 2126217299 is a prime.

It is not a weakly prime, because it can be changed into another prime (2126217347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063108653 + 1063108654.

It is an arithmetic number, because the mean of its divisors is an integer number (1063108654).

Almost surely, 2^2126217307 is an apocalyptic number.

2126217307 is a deficient number, since it is larger than the sum of its proper divisors (1).

2126217307 is an equidigital number, since it uses as much as digits as its factorization.

2126217307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 2126217307 is about 46110.9239443323. The cubic root of 2126217307 is about 1285.8862417282.

The spelling of 2126217307 in words is "two billion, one hundred twenty-six million, two hundred seventeen thousand, three hundred seven".