21113201079041 has 2 divisors, whose sum is σ = 21113201079042. Its totient is φ = 21113201079040.

The previous prime is 21113201079023. The next prime is 21113201079127. The reversal of 21113201079041 is 14097010231112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11071457664400 + 10041743414641 = 3327380^2 + 3168871^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21113201079041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21113201078989 and 21113201079007.

It is not a weakly prime, because it can be changed into another prime (21113201079001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556600539520 + 10556600539521.

It is an arithmetic number, because the mean of its divisors is an integer number (10556600539521).

Almost surely, 2^{21113201079041} is an apocalyptic number.

It is an amenable number.

21113201079041 is a deficient number, since it is larger than the sum of its proper divisors (1).

21113201079041 is an equidigital number, since it uses as much as digits as its factorization.

21113201079041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 32.

The spelling of 21113201079041 in words is "twenty-one trillion, one hundred thirteen billion, two hundred one million, seventy-nine thousand, forty-one".