20111063013 has 6 divisors (see below), whose sum is σ = 29049313254. Its totient is φ = 13407375336.

The previous prime is 20111062967. The next prime is 20111063033. The reversal of 20111063013 is 31036011102.

20111063013 is a `hidden beast` number, since 2 + 0 + 11 + 10 + 630 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19829427489 + 281635524 = 140817^2 + 16782^2 .

It is not a de Polignac number, because 20111063013 - 2¹⁷ = 20110931941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111063033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1117281270 + ... + 1117281287.

It is an arithmetic number, because the mean of its divisors is an integer number (4841552209).

Almost surely, 2^20111063013 is an apocalyptic number.

It is an amenable number.

20111063013 is a deficient number, since it is larger than the sum of its proper divisors (8938250241).

20111063013 is a wasteful number, since it uses less digits than its factorization.

20111063013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234562563 (or 2234562560 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 20111063013 its reverse (31036011102), we get a palindrome (51147074115).

It can be divided in two parts, 2011 and 1063013, that added together give a square (1065024 = 1032²).

The spelling of 20111063013 in words is "twenty billion, one hundred eleven million, sixty-three thousand, thirteen".