20111928301 has 4 divisors (see below), whose sum is σ = 20805443100. Its totient is φ = 19418413504.

The previous prime is 20111928259. The next prime is 20111928313. The reversal of 20111928301 is 10382911102.

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 11513075401 + 8598852900 = 107299^2 + 92730^2 .

It is a cyclic number.

It is not a de Polignac number, because 20111928301 - 2⁷ = 20111928173 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20111928301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111928701) 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, 346757356 + ... + 346757413.

It is an arithmetic number, because the mean of its divisors is an integer number (5201360775).

Almost surely, 2^20111928301 is an apocalyptic number.

It is an amenable number.

20111928301 is a deficient number, since it is larger than the sum of its proper divisors (693514799).

20111928301 is an equidigital number, since it uses as much as digits as its factorization.

20111928301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693514798.

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 20111928301 in words is "twenty billion, one hundred eleven million, nine hundred twenty-eight thousand, three hundred one".