20102440307 has 2 divisors, whose sum is σ = 20102440308. Its totient is φ = 20102440306.

The previous prime is 20102440283. The next prime is 20102440357. The reversal of 20102440307 is 70304420102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20102440307 - 2¹⁴ = 20102423923 is a prime.

It is not a weakly prime, because it can be changed into another prime (20102440357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051220153 + 10051220154.

It is an arithmetic number, because the mean of its divisors is an integer number (10051220154).

Almost surely, 2^20102440307 is an apocalyptic number.

20102440307 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102440307 is an equidigital number, since it uses as much as digits as its factorization.

20102440307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

Adding to 20102440307 its reverse (70304420102), we get a palindrome (90406860409).

The spelling of 20102440307 in words is "twenty billion, one hundred two million, four hundred forty thousand, three hundred seven".