20053505331 has 12 divisors (see below), whose sum is σ = 30490710120. Its totient is φ = 12665371680.

The previous prime is 20053505309. The next prime is 20053505333. The reversal of 20053505331 is 13350535002.

It is not a de Polignac number, because 20053505331 - 2¹⁷ = 20053374259 is a prime.

It is a super-2 number, since 2×20053505331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20053505295 and 20053505304.

It is not an unprimeable number, because it can be changed into a prime (20053505333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58635810 + ... + 58636151.

It is an arithmetic number, because the mean of its divisors is an integer number (2540892510).

Almost surely, 2^20053505331 is an apocalyptic number.

20053505331 is a deficient number, since it is larger than the sum of its proper divisors (10437204789).

20053505331 is a wasteful number, since it uses less digits than its factorization.

20053505331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117271986 (or 117271983 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The spelling of 20053505331 in words is "twenty billion, fifty-three million, five hundred five thousand, three hundred thirty-one".