20507337311 has 8 divisors (see below), whose sum is σ = 20610940080. Its totient is φ = 20403851328.

The previous prime is 20507337271. The next prime is 20507337379. The reversal of 20507337311 is 11373370502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20507337311 - 2²² = 20503143007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20507337391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334235 + ... + 390803.

It is an arithmetic number, because the mean of its divisors is an integer number (2576367510).

Almost surely, 2^20507337311 is an apocalyptic number.

20507337311 is a deficient number, since it is larger than the sum of its proper divisors (103602769).

20507337311 is a wasteful number, since it uses less digits than its factorization.

20507337311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58393.

The product of its (nonzero) digits is 13230, while the sum is 32.

The spelling of 20507337311 in words is "twenty billion, five hundred seven million, three hundred thirty-seven thousand, three hundred eleven".