11346520321 has 4 divisors (see below), whose sum is σ = 11347654612. Its totient is φ = 11345386032.

The previous prime is 11346520319. The next prime is 11346520327. The reversal of 11346520321 is 12302564311.

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 6149696400 + 5196823921 = 78420^2 + 72089^2 .

It is a cyclic number.

It is not a de Polignac number, because 11346520321 - 2¹ = 11346520319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11346520321.

It is not an unprimeable number, because it can be changed into a prime (11346520327) 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, 552006 + ... + 572191.

It is an arithmetic number, because the mean of its divisors is an integer number (2836913653).

Almost surely, 2^11346520321 is an apocalyptic number.

It is an amenable number.

11346520321 is a deficient number, since it is larger than the sum of its proper divisors (1134291).

11346520321 is a wasteful number, since it uses less digits than its factorization.

11346520321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134290.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 11346520321 in words is "eleven billion, three hundred forty-six million, five hundred twenty thousand, three hundred twenty-one".