11551110355241 has 2 divisors, whose sum is σ = 11551110355242. Its totient is φ = 11551110355240.

The previous prime is 11551110355237. The next prime is 11551110355243. The reversal of 11551110355241 is 14255301115511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11166591306025 + 384519049216 = 3341645^2 + 620096^2 .

It is a cyclic number.

It is not a de Polignac number, because 11551110355241 - 2² = 11551110355237 is a prime.

It is a super-2 number, since 2×11551110355241² (a number of 27 digits) contains 22 as substring.

Together with 11551110355243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11551110355243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5775555177620 + 5775555177621.

It is an arithmetic number, because the mean of its divisors is an integer number (5775555177621).

Almost surely, 2^{11551110355241} is an apocalyptic number.

It is an amenable number.

11551110355241 is a deficient number, since it is larger than the sum of its proper divisors (1).

11551110355241 is an equidigital number, since it uses as much as digits as its factorization.

11551110355241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15000, while the sum is 35.

The spelling of 11551110355241 in words is "eleven trillion, five hundred fifty-one billion, one hundred ten million, three hundred fifty-five thousand, two hundred forty-one".