20111100041 has 2 divisors, whose sum is σ = 20111100042. Its totient is φ = 20111100040.

The previous prime is 20111100029. The next prime is 20111100049. The reversal of 20111100041 is 14000111102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13349491600 + 6761608441 = 115540^2 + 82229^2 .

It is a cyclic number.

It is not a de Polignac number, because 20111100041 - 2³⁴ = 2931230857 is a prime.

It is a super-2 number, since 2×20111100041² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20111099995 and 20111100031.

It is not a weakly prime, because it can be changed into another prime (20111100049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055550020 + 10055550021.

It is an arithmetic number, because the mean of its divisors is an integer number (10055550021).

Almost surely, 2^20111100041 is an apocalyptic number.

It is an amenable number.

20111100041 is a deficient number, since it is larger than the sum of its proper divisors (1).

20111100041 is an equidigital number, since it uses as much as digits as its factorization.

20111100041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20111100041 its reverse (14000111102), we get a palindrome (34111211143).

The spelling of 20111100041 in words is "twenty billion, one hundred eleven million, one hundred thousand, forty-one".