20110510011601 has 16 divisors (see below), whose sum is σ = 22074908019840. Its totient is φ = 18235732399360.

The previous prime is 20110510011589. The next prime is 20110510011629. The reversal of 20110510011601 is 10611001501102.

It is a cyclic number.

It is not a de Polignac number, because 20110510011601 - 2²⁹ = 20109973140689 is a prime.

It is a super-3 number, since 3×20110510011601³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110510021601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43444405 + ... + 43904866.

It is an arithmetic number, because the mean of its divisors is an integer number (1379681751240).

Almost surely, 2^{20110510011601} is an apocalyptic number.

It is an amenable number.

20110510011601 is a deficient number, since it is larger than the sum of its proper divisors (1964398008239).

20110510011601 is a wasteful number, since it uses less digits than its factorization.

20110510011601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87349784.

The product of its (nonzero) digits is 60, while the sum is 19.

Adding to 20110510011601 its reverse (10611001501102), we get a palindrome (30721511512703).

The spelling of 20110510011601 in words is "twenty trillion, one hundred ten billion, five hundred ten million, eleven thousand, six hundred one".