20603122771 has 16 divisors (see below), whose sum is σ = 26108114688. Its totient is φ = 15791191200.

The previous prime is 20603122763. The next prime is 20603122843. The reversal of 20603122771 is 17722130602.

It is a cyclic number.

It is not a de Polignac number, because 20603122771 - 2³ = 20603122763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20603122741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2188525 + ... + 2197918.

It is an arithmetic number, because the mean of its divisors is an integer number (1631757168).

Almost surely, 2^20603122771 is an apocalyptic number.

20603122771 is a deficient number, since it is larger than the sum of its proper divisors (5504991917).

20603122771 is a wasteful number, since it uses less digits than its factorization.

20603122771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4386522.

The product of its (nonzero) digits is 7056, while the sum is 31.

The spelling of 20603122771 in words is "twenty billion, six hundred three million, one hundred twenty-two thousand, seven hundred seventy-one".