20105372307 has 16 divisors (see below), whose sum is σ = 28050987008. Its totient is φ = 12793515840.

The previous prime is 20105372299. The next prime is 20105372347. The reversal of 20105372307 is 70327350102.

It is not a de Polignac number, because 20105372307 - 2³ = 20105372299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20105372347) 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 in 15 ways as a sum of consecutive naturals, for example, 1473943 + ... + 1487520.

It is an arithmetic number, because the mean of its divisors is an integer number (1753186688).

Almost surely, 2^20105372307 is an apocalyptic number.

20105372307 is a deficient number, since it is larger than the sum of its proper divisors (7945614701).

20105372307 is a wasteful number, since it uses less digits than its factorization.

20105372307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2961570.

The product of its (nonzero) digits is 8820, while the sum is 30.

The spelling of 20105372307 in words is "twenty billion, one hundred five million, three hundred seventy-two thousand, three hundred seven".