11540202513 has 24 divisors (see below), whose sum is σ = 17916887520. Its totient is φ = 6587844480.

The previous prime is 11540202469. The next prime is 11540202521. The reversal of 11540202513 is 31520204511.

It is a happy number.

It is not a de Polignac number, because 11540202513 - 2⁹ = 11540202001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11540202523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111273 + ... + 188313.

It is an arithmetic number, because the mean of its divisors is an integer number (746536980).

Almost surely, 2^11540202513 is an apocalyptic number.

It is an amenable number.

11540202513 is a deficient number, since it is larger than the sum of its proper divisors (6376685007).

11540202513 is a wasteful number, since it uses less digits than its factorization.

11540202513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78077 (or 78070 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 11540202513 in words is "eleven billion, five hundred forty million, two hundred two thousand, five hundred thirteen".