20010240511 has 8 divisors (see below), whose sum is σ = 20907421920. Its totient is φ = 19115323392.

The previous prime is 20010240491. The next prime is 20010240517. The reversal of 20010240511 is 11504201002.

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 20010240511 - 2¹¹ = 20010238463 is a prime.

It is a super-2 number, since 2×20010240511² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010240517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547990 + ... + 583363.

It is an arithmetic number, because the mean of its divisors is an integer number (2613427740).

Almost surely, 2^20010240511 is an apocalyptic number.

20010240511 is a deficient number, since it is larger than the sum of its proper divisors (897181409).

20010240511 is a wasteful number, since it uses less digits than its factorization.

20010240511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132145.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 20010240511 its reverse (11504201002), we get a palindrome (31514441513).

The spelling of 20010240511 in words is "twenty billion, ten million, two hundred forty thousand, five hundred eleven".