20532511331 has 8 divisors (see below), whose sum is σ = 20842128384. Its totient is φ = 20222987400.

The previous prime is 20532511297. The next prime is 20532511361. The reversal of 20532511331 is 13311523502.

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 20532511331 - 2¹⁴ = 20532494947 is a prime.

It is a super-2 number, since 2×20532511331² (a number of 21 digits) contains 22 as substring.

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 20532511331.

It is not an unprimeable number, because it can be changed into a prime (20532511361) 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, 513446 + ... + 551988.

It is an arithmetic number, because the mean of its divisors is an integer number (2605266048).

Almost surely, 2^20532511331 is an apocalyptic number.

20532511331 is a deficient number, since it is larger than the sum of its proper divisors (309617053).

20532511331 is an equidigital number, since it uses as much as digits as its factorization.

20532511331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46561.

The product of its (nonzero) digits is 2700, while the sum is 26.

The spelling of 20532511331 in words is "twenty billion, five hundred thirty-two million, five hundred eleven thousand, three hundred thirty-one".