41121551134021 has 2 divisors, whose sum is σ = 41121551134022. Its totient is φ = 41121551134020.

The previous prime is 41121551134009. The next prime is 41121551134039. The reversal of 41121551134021 is 12043115512114.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36677086057921 + 4444465076100 = 6056161^2 + 2108190^2 .

It is a cyclic number.

It is not a de Polignac number, because 41121551134021 - 2³¹ = 41119403650373 is a prime.

It is a super-2 number, since 2×41121551134021² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41121551134721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20560775567010 + 20560775567011.

It is an arithmetic number, because the mean of its divisors is an integer number (20560775567011).

Almost surely, 2^{41121551134021} is an apocalyptic number.

It is an amenable number.

41121551134021 is a deficient number, since it is larger than the sum of its proper divisors (1).

41121551134021 is an equidigital number, since it uses as much as digits as its factorization.

41121551134021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 31.

Adding to 41121551134021 its reverse (12043115512114), we get a palindrome (53164666646135).

The spelling of 41121551134021 in words is "forty-one trillion, one hundred twenty-one billion, five hundred fifty-one million, one hundred thirty-four thousand, twenty-one".