21950241307 has 2 divisors, whose sum is σ = 21950241308. Its totient is φ = 21950241306.

The previous prime is 21950241293. The next prime is 21950241311. The reversal of 21950241307 is 70314205912.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21950241307 - 2¹⁹ = 21949717019 is a prime.

It is not a weakly prime, because it can be changed into another prime (21950241367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10975120653 + 10975120654.

It is an arithmetic number, because the mean of its divisors is an integer number (10975120654).

Almost surely, 2^21950241307 is an apocalyptic number.

21950241307 is a deficient number, since it is larger than the sum of its proper divisors (1).

21950241307 is an equidigital number, since it uses as much as digits as its factorization.

21950241307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 21950241307 in words is "twenty-one billion, nine hundred fifty million, two hundred forty-one thousand, three hundred seven".