20430771135 has 48 divisors (see below), whose sum is σ = 33235762560. Its totient is φ = 10716638400.

The previous prime is 20430771133. The next prime is 20430771169. The reversal of 20430771135 is 53117703402.

It is not a de Polignac number, because 20430771135 - 2¹ = 20430771133 is a prime.

It is a super-3 number, since 3×20430771135³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20430771096 and 20430771105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20430771133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35780400 + ... + 35780970.

It is an arithmetic number, because the mean of its divisors is an integer number (692411720).

Almost surely, 2^20430771135 is an apocalyptic number.

20430771135 is a deficient number, since it is larger than the sum of its proper divisors (12804991425).

20430771135 is a wasteful number, since it uses less digits than its factorization.

20430771135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 33.

The spelling of 20430771135 in words is "twenty billion, four hundred thirty million, seven hundred seventy-one thousand, one hundred thirty-five".