11511353041 has 4 divisors (see below), whose sum is σ = 11511724212. Its totient is φ = 11510981872.

The previous prime is 11511353011. The next prime is 11511353057. The reversal of 11511353041 is 14035311511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4268662225 + 7242690816 = 65335^2 + 85104^2 .

It is a cyclic number.

It is not a de Polignac number, because 11511353041 - 2¹⁹ = 11510828753 is a prime.

It is a super-2 number, since 2×11511353041² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11511352997 and 11511353015.

It is not an unprimeable number, because it can be changed into a prime (11511353011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134350 + ... + 202663.

It is an arithmetic number, because the mean of its divisors is an integer number (2877931053).

Almost surely, 2^11511353041 is an apocalyptic number.

It is an amenable number.

11511353041 is a deficient number, since it is larger than the sum of its proper divisors (371171).

11511353041 is an equidigital number, since it uses as much as digits as its factorization.

11511353041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371170.

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 11511353041 its reverse (14035311511), we get a palindrome (25546664552).

The spelling of 11511353041 in words is "eleven billion, five hundred eleven million, three hundred fifty-three thousand, forty-one".