11545620313 has 4 divisors (see below), whose sum is σ = 12153284560. Its totient is φ = 10937956068.

The previous prime is 11545620301. The next prime is 11545620403. The reversal of 11545620313 is 31302654511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31302654511 = 107 ⋅292548173.

It is a cyclic number.

It is not a de Polignac number, because 11545620313 - 2⁹ = 11545619801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11545620113) 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, 303832095 + ... + 303832132.

It is an arithmetic number, because the mean of its divisors is an integer number (3038321140).

Almost surely, 2^11545620313 is an apocalyptic number.

It is an amenable number.

11545620313 is a deficient number, since it is larger than the sum of its proper divisors (607664247).

11545620313 is an equidigital number, since it uses as much as digits as its factorization.

11545620313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607664246.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 11545620313 in words is "eleven billion, five hundred forty-five million, six hundred twenty thousand, three hundred thirteen".