11274321573 has 12 divisors (see below), whose sum is σ = 16682330028. Its totient is φ = 7332891840.

The previous prime is 11274321563. The next prime is 11274321581. The reversal of 11274321573 is 37512347211.

11274321573 is a `hidden beast` number, since 1 + 1 + 27 + 43 + 21 + 573 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3861628164 + 7412693409 = 62142^2 + 86097^2 .

It is not a de Polignac number, because 11274321573 - 2⁴ = 11274321557 is a prime.

It is a super-2 number, since 2×11274321573² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11274321563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15276490 + ... + 15277227.

It is an arithmetic number, because the mean of its divisors is an integer number (1390194169).

Almost surely, 2^11274321573 is an apocalyptic number.

It is an amenable number.

11274321573 is a deficient number, since it is larger than the sum of its proper divisors (5408008455).

11274321573 is a wasteful number, since it uses less digits than its factorization.

11274321573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30553764 (or 30553761 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

Adding to 11274321573 its reverse (37512347211), we get a palindrome (48786668784).

The spelling of 11274321573 in words is "eleven billion, two hundred seventy-four million, three hundred twenty-one thousand, five hundred seventy-three".