20302120005 has 16 divisors (see below), whose sum is σ = 32492544000. Its totient is φ = 10824746688.

The previous prime is 20302119997. The next prime is 20302120049. The reversal of 20302120005 is 50002120302.

It is not a de Polignac number, because 20302120005 - 2³ = 20302119997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135130 + ... + 242619.

It is an arithmetic number, because the mean of its divisors is an integer number (2030784000).

Almost surely, 2^20302120005 is an apocalyptic number.

It is an amenable number.

20302120005 is a deficient number, since it is larger than the sum of its proper divisors (12190423995).

20302120005 is a wasteful number, since it uses less digits than its factorization.

20302120005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381340.

The product of its (nonzero) digits is 120, while the sum is 15.

Adding to 20302120005 its reverse (50002120302), we get a palindrome (70304240307).

The spelling of 20302120005 in words is "twenty billion, three hundred two million, one hundred twenty thousand, five".