1021115450041 has 2 divisors, whose sum is σ = 1021115450042. Its totient is φ = 1021115450040.

The previous prime is 1021115449997. The next prime is 1021115450059. The reversal of 1021115450041 is 1400545111201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 529860247225 + 491255202816 = 727915^2 + 700896^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021115450041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021115449988 and 1021115450015.

It is not a weakly prime, because it can be changed into another prime (1021115450141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510557725020 + 510557725021.

It is an arithmetic number, because the mean of its divisors is an integer number (510557725021).

Almost surely, 2^{1021115450041} is an apocalyptic number.

It is an amenable number.

1021115450041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021115450041 is an equidigital number, since it uses as much as digits as its factorization.

1021115450041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 25.

The spelling of 1021115450041 in words is "one trillion, twenty-one billion, one hundred fifteen million, four hundred fifty thousand, forty-one".