20363540107 has 4 divisors (see below), whose sum is σ = 21248911440. Its totient is φ = 19478168776.

The previous prime is 20363540081. The next prime is 20363540173. The reversal of 20363540107 is 70104536302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20363540107 - 2¹⁹ = 20363015819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20363540177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442685632 + ... + 442685677.

It is an arithmetic number, because the mean of its divisors is an integer number (5312227860).

Almost surely, 2^20363540107 is an apocalyptic number.

20363540107 is a deficient number, since it is larger than the sum of its proper divisors (885371333).

20363540107 is an equidigital number, since it uses as much as digits as its factorization.

20363540107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885371332.

The product of its (nonzero) digits is 15120, while the sum is 31.

The spelling of 20363540107 in words is "twenty billion, three hundred sixty-three million, five hundred forty thousand, one hundred seven".