11231320134 has 16 divisors (see below), whose sum is σ = 22485881088. Its totient is φ = 3739899912.

The previous prime is 11231320073. The next prime is 11231320157. The reversal of 11231320134 is 43102313211.

It is a super-2 number, since 2×11231320134² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11231320134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 962082 + ... + 973685.

It is an arithmetic number, because the mean of its divisors is an integer number (1405367568).

Almost surely, 2^11231320134 is an apocalyptic number.

11231320134 is an abundant number, since it is smaller than the sum of its proper divisors (11254560954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11231320134 is a wasteful number, since it uses less digits than its factorization.

11231320134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936739.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11231320134 its reverse (43102313211), we get a palindrome (54333633345).

The spelling of 11231320134 in words is "eleven billion, two hundred thirty-one million, three hundred twenty thousand, one hundred thirty-four".