20111043241042 has 16 divisors (see below), whose sum is σ = 32724201753432. Its totient is φ = 9214267985280.

The previous prime is 20111043241033. The next prime is 20111043241057. The reversal of 20111043241042 is 24014234011102.

It can be written as a sum of positive squares in 4 ways, for example, as 19583094227841 + 527949013201 = 4425279^2 + 726601^2 .

It is a super-2 number, since 2×20111043241042² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20111043240998 and 20111043241016.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2822995209 + ... + 2823002332.

Almost surely, 2^{20111043241042} is an apocalyptic number.

20111043241042 is a deficient number, since it is larger than the sum of its proper divisors (12613158512390).

20111043241042 is a wasteful number, since it uses less digits than its factorization.

20111043241042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5645997693.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 20111043241042 its reverse (24014234011102), we get a palindrome (44125277252144).

The spelling of 20111043241042 in words is "twenty trillion, one hundred eleven billion, forty-three million, two hundred forty-one thousand, forty-two".