11540213225 has 12 divisors (see below), whose sum is σ = 14344029840. Its totient is φ = 9210128400.

The previous prime is 11540213189. The next prime is 11540213227. The reversal of 11540213225 is 52231204511.

It is not a de Polignac number, because 11540213225 - 2¹⁸ = 11539951081 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11540213194 and 11540213203.

It is not an unprimeable number, because it can be changed into a prime (11540213227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 540371 + ... + 561320.

It is an arithmetic number, because the mean of its divisors is an integer number (1195335820).

Almost surely, 2^11540213225 is an apocalyptic number.

It is an amenable number.

11540213225 is a deficient number, since it is larger than the sum of its proper divisors (2803816615).

11540213225 is a wasteful number, since it uses less digits than its factorization.

11540213225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102120 (or 1102115 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 11540213225 its reverse (52231204511), we get a palindrome (63771417736).

The spelling of 11540213225 in words is "eleven billion, five hundred forty million, two hundred thirteen thousand, two hundred twenty-five".