2541535444121 has 2 divisors, whose sum is σ = 2541535444122. Its totient is φ = 2541535444120.

The previous prime is 2541535444073. The next prime is 2541535444139. The reversal of 2541535444121 is 1214445351452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2326296048400 + 215239395721 = 1525220^2 + 463939^2 .

It is a cyclic number.

It is not a de Polignac number, because 2541535444121 - 2¹⁴ = 2541535427737 is a prime.

It is not a weakly prime, because it can be changed into another prime (2541535444141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270767722060 + 1270767722061.

It is an arithmetic number, because the mean of its divisors is an integer number (1270767722061).

Almost surely, 2^{2541535444121} is an apocalyptic number.

It is an amenable number.

2541535444121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541535444121 is an equidigital number, since it uses as much as digits as its factorization.

2541535444121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384000, while the sum is 41.

The spelling of 2541535444121 in words is "two trillion, five hundred forty-one billion, five hundred thirty-five million, four hundred forty-four thousand, one hundred twenty-one".