20703363601 has 4 divisors (see below), whose sum is σ = 20842312500. Its totient is φ = 20564414704.

The previous prime is 20703363599. The next prime is 20703363617. The reversal of 20703363601 is 10636330702.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13286020225 + 7417343376 = 115265^2 + 86124^2 .

It is a cyclic number.

It is not a de Polignac number, because 20703363601 - 2¹ = 20703363599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20703363631) 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, 69474226 + ... + 69474523.

It is an arithmetic number, because the mean of its divisors is an integer number (5210578125).

Almost surely, 2^20703363601 is an apocalyptic number.

It is an amenable number.

20703363601 is a deficient number, since it is larger than the sum of its proper divisors (138948899).

20703363601 is a wasteful number, since it uses less digits than its factorization.

20703363601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138948898.

The product of its (nonzero) digits is 13608, while the sum is 31.

The spelling of 20703363601 in words is "twenty billion, seven hundred three million, three hundred sixty-three thousand, six hundred one".